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武部 博倫タケベ ヒロミチ

所属部署
大学院理工学研究科 物質生命工学専攻
職名教授
メールアドレス
ホームページURLhttp://www.mpel.jp/
生年月日
Last Updated :2017/12/05

研究者基本情報

経歴

  •   2008年04月,  - 現在, 愛媛大学, 教授
  • 旧所属 九州大学 大学院総合理工学研究院 融合創造理工学部門, 准教授

所属学協会

  • Society of Glass Technology
  • 日本金属学会
  • 日本セラミックス協会
  • American Ceramic Society
  • 資源・素材学会
  • 応用物理学会
  • Optical Society of America

研究活動情報

研究分野

  • 無機材料・物性
  • 金属・資源生産工学

研究キーワード

    融体, ガラス, 耐火物, スラグ, 乾式製錬

論文

MISC

  • ナノ結晶電気泳動電着法によるBaTiO3薄膜の作製と誘電特性
    古賀朋美, WU Yong Jun, LI Juan, 武部博倫, 桑原誠, 日本セラミックス協会年会講演予稿集, 2005,   2005年03月22日
  • Ga2S3‐La2O3系結晶化ガラスの作製及び特性評価
    村上毅, 武部博倫, 桑原誠, 日本セラミックス協会年会講演予稿集, 2005,   2005年03月22日
  • BaO‐P2O5‐B2O3ガラスの熱的特性と構造
    武部博倫, 原田尚志, 桑原誠, 日本セラミックス協会年会講演予稿集, 2005,   2005年03月22日
  • ランダム系フォトエレクトロニクスとその応用 カルコゲナイド光ファイバ材料と応用
    武部博倫, SANGHERA J S, AGGARWAL I D, Optronics, (279) 148 - 153,   2005年03月10日
  • Glass forming region and structure of vitreous RS-Ga2S3 (R = Ca, Sr, Ba)
    Toshiyuki Ishibashi, Hiromichi Takebe, Kenji Morinaga, Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan, 111,   2003年05月01日, Gallium sulfide glasses were prepared in the RS-Ga2S3 (R = Ca, Sr, Ba) systems. Respective glass forming regions are 67.5-70.0 mol% CaS, 63.8-68.8 mol% SrS and 60.0-73.8 mol% BaS. Transmission spectra in the visible region, refractive index and glass transition and onset crystallization temperatures were measured for representative compositions of SrS- and BaS-Ga2S3 transparent glasses. Raman spectroscopy reveals that RS-Ga2S3 glasses consist of the network of GeS4 tetrahedra due to the RS addition. The compositional dependence of molar volume indicates a plateau region at 65-70 mol% RS in SrS- and BaS-Ga2S3 glasses. The morphology of sulfur complex anions in RS-Ga2S3 glass melts is discussed using the sulfur-to-gallium ratio as a variable parameter. The combined results suggest that well-developed glass networks are formed near 66.7 mol% RS (S/Ga = 2.5) in the SrS- and BaS-Ga2S3 systems.
  • フェムト秒レーザーによる非晶質硫化物薄膜へのマイクロレンズの形成
    石橋 俊行, 北川 良太, 岩崎 峰人, 武部 博倫, 森永 健次, 日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 111, (1293) 291 - 293,   2003年05月01日, Microlens formation, as induced by single shot of a femtosecond laser pulse, was observed in Sm-doped non-crystalline SrS-Ga_2S_3 thin films. The existence of Sm^<2+> could be related to the photoinduced deformation of the thin films. The confocal scanning laser microscopy observations revealed that detachment in the thin films occurred locally at the center part of the irradiated area.
  • Non-toxic sulfide glasses and thin films for optical applications
    Hiromichi Takebe, Ryota Kitagawa, Daniel W. Hewak, Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan, 113,   2005年01月01日, This article reviews the fabrication and properties of sulfide glasses and thin films consisting of non-toxic elements: alkaline-earth, rare-earth, germanium and gallium sulfides for optical applications. Refractive indexes, transmission and the fluorescence property of rare-earth ions in sulfide glasses are presented. Factors affecting rare-earth solubility in sulfide glasses are summarized. Thermally-stable BaS-Ga 2S 3-GeS 2 glasses for optical fibers and Nd 3+-doped transparent Ga-La-S-O glass-ceramics are described as new optical materials. Sm-doped SrS-Ga 2S 3 non-crystalline and nano-crystalline metallic SmS films were irradiated by focused femtosecond laser pulses and new photoinduced phenomena are introduced.
  • ZnO‐P2O5系ガラスの水への浸出挙動
    馬場弥生, 武部博倫, 桑原誠, 日本金属学会・日本鉄鋼協会九州支部合同学術講演会講演概要集, 2005,   2005年
  • 硫化物ガラスについて
    武部博倫, 資源・素材, 2005, (C/D) 267 - 270,   2005年
  • ZnO‐P2O5系ガラスの水への浸出挙動
    馬場弥生, 武部博倫, 桑原誠, ガラスおよびフォトニクス材料討論会講演要旨集, 45th,   2004年11月25日
  • Ge‐Sガラスの作製条件と赤外透過性
    武部博倫, 北川良太, 平川敏弘, 資源と素材, 120, (10/11) 607 - 610,   2004年11月25日
  • BaS‐Ga2S3‐GeS2系硫化物ガラスの熱的特性と構造
    武部博倫, 村上毅, 資源・素材, 2004, (C/D) 333 - 334,   2004年09月14日
  • 硫化物ガラスマトリックスのAgの光ドープ現象に与える影響
    北川良太, 武部博倫, 応用物理学会学術講演会講演予稿集, 65th,   2004年09月01日
  • Ge‐S及びGe‐Sb‐Sガラスの作製条件と光透過性
    武部博倫, 平川敏弘, 北川良太, 資源・素材学会春季大会講演集, (2) 162 - 163,   2004年03月29日
  • カルコゲナイド光ファイバー材料の現状と課題
    武部博倫, 応用物理学関係連合講演会講演予稿集, 51st,   2004年03月28日
  • LiNbO3中のLiイオンの拡散と欠陥密度依存性
    津野大, 坂口勲, 竹川俊二, 武部博倫, 北村健二, 大橋直樹, 羽田肇, 応用物理学関係連合講演会講演予稿集, 51st,   2004年03月28日
  • Effect of B 2O 3 Addition on the Thermal Stability of Barium Phosphate Glasses for Optical Fiber Devices
    Takashi Harada, Hiroyuki In, Hiromichi Takebe, Hiromichi Takebe, Kenji Morinaga, Kenji Morinaga, Journal of the American Ceramic Society, 87,   2004年03月01日, The effect of B 2O 3 addition on the thermal stability of BaO-P 2O 5 glasses is studied by differential thermal analysis (DTA), X-ray diffraction (XRD) analysis, scanning electron microscopy, and micro-Raman spectroscopy. The difference between glass-transition and onset-crystallization temperatures increases monotonically with increasing B 2O 3 concentration. The DTA result reveals that no exothermic peak due to surface crystallization exists in the BaO-P 2O 5 glass doped with 3 mol% B 2O 3. A single-mode BaO-P 2O 5-B 2O 3 glass fiber could be fabricated by a rod-in-tube technique. The modification of glass structure due to B 2O 3 addition is qualitatively discussed.
  • 極低温における無機結晶のシンチレーション発光現象の解明
    前畑京介, 有馬秀彦, 執行信寛, 武部博倫, 渡辺幸信, 日本原子力研究所JAERI-Conf,   2004年02月
  • BaO‐P2O5系ガラスの熱的安定性に及ぼすB2O3の効果
    原田尚志, 武部博倫, 森永健次, セラミックス基礎科学討論会講演要旨集, 42nd,   2004年01月22日
  • Phase Relations and Transformations in Advanced Ceramic Materials
    K. Morinaga, H. Takebe, High Temperature Materials and Processes, 22,   2004年01月13日, This article reviews the phase diagrams contributing to the understanding of compound formations, phase transformations, phase separation and microstructural development in advanced ceramic systems. Phase equilibrium relations in the Al2O3-AlN and AlN-B2O 3 systems are presented for the fabrication of translucent aluminum oxynitride spinel ceramics and in-situ hexagonal boron nitride composites. In oxide systems, especially in glass-forming systems, crystallized phases vary with not only composition and temperature but also time of heat-treatment. Considering this aspect, time-temperature-transformation (TTT) diagrams in the solidification processes of cordierite, high-Tc superconducting oxide and fluorphlogopite melts and the phase transformations of ammonium aluminum carbonate hydroxide to α-alumina are introduced and specific phase transformations in these systems are also discussed. The effect of treatment atmosphere on microstructure in phase transformations is described in the surface-treatment of AlN ceramics and the sintering of transparent silica glass.
  • CaS焼結体の作製とキャラクタリゼーション
    平川敏弘, 岩崎峰人, 武部博倫, 森永健次, 資源と素材, 119, (12) 755 - 758,   2003年12月25日
  • 低光弾性バリウムリン酸塩ガラスファイバの作製
    因浩之, 原田尚志, 武部博倫, 森永健次, 応用物理学会学術講演会講演予稿集, 64th,   2003年08月30日
  • Fabrication condition of transparent OH free sintered silica glass
    Yong Taeg O, Hiromichi Takebe, Kenji Morinaga, Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan, 105,   1997年12月01日, Green compacts of high-purity silica powders with different particle sizes were formed by slip casting method and pressureless-sintered. Conditions to fabricate transparent silica glasses are presented using diagrams described by sintering-temperature and -time. The variation of linear shrinkage with time reveals that the sintering mechanism at its early stage follows the viscous flow of silica glass particles. The effect of firing schedule on residual OH concentration was studied for transparent sintered silica glasses. A green compact prepared by silica powders with a mean particle size of 1.6 μm was fired at 1573 K for 3h for dehydration and heated up to 1873 K for densification; this typical fabrication condition results in a transparent sintered silica glass with<1 ppm OH concentration.
  • アルカリ土類アルミノケイ酸塩ガラスの等温熱処理における相変態
    呉 龍澤, 吉原 賢太郎, 武部 博倫, 森永 健次, 日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 105, (1228) 1109 - 1114,   1997年12月01日, Phase transformations during the isothermal heat treatments of alkaline-earth aluminosilicate glasses with compositions of RO・Al_2O_3・2SiO_2(R=Mg, Ca, Sr, Ba)were studied based on the time-temperature-transformation(TTT)diagram. The crystallization conditions of metastable and stable phases such as cordierite(MgO・Al_2O_3・2.5SiO_2), anorthite(CaO・Al_2O_3・2SiO_2)and celsian(SrO・Al_2O_3・2SiO_2, BaO・Al_2O_3・2SiO_2), are determined. The onset time of crystallization is related to the viscosity of supercooled liquid measured in the previous works. The transformation processes of metastable-to-stable phases are discussed in terms of anion structure and cation radius.
  • 超短パルスレーザー照射による金属性SmS薄膜の相変化
    北川良太, 武部博倫, 日本金属学会・日本鉄鋼協会九州支部合同学術講演会講演概要集, 2003,   2003年06月06日
  • Low photo-elastic characteristics of BaO-P2O5 glasses
    Hiroyuki In, Hiromichi Takebe, Kenji Morinaga, Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan, 111,   2003年06月01日, The photo-elastic constants (PEC) of BaO-P2O5 glasses with 50-57 mol%BaO were determined at 633 nm using a frequency stabilized transverse Zeeman laser. Measured PEC was found to vary from 0.15 to 0.63 × 10-12 Pa-1, depending on composition. The concentration effects of OH, Al2O3 and BaO on PEC are studied. PEC increases with increasing Al2O3 concentration for metaphosphate glasses with BaO/P2O5 = 1. On the other hand, PEC decreases monotonically with increasing BaO concentration. An empirical equation to predict PEC from glass composition is proposed. The correlation between PEC and glass structure, as evaluated by Raman spectroscopy is qualitatively discussed.
  • BaO‐P2O5ガラスの低光弾性特性
    因浩之, 武部博倫, 森永健次, 日本セラミックス協会学術論文誌, 111, (1294) 426 - 429,   2003年06月01日
  • BaO-P2O5ガラスの低光弾性特性
    因 浩之, 武部 博倫, 森永 健次, Journal of Ceramic Society of Japan, 111, (6) 426 - 429,   2003年06月01日, The photo-elastic constants (PEC) of BaO-P_20_5 glasses with 50-57 mol% BaO were determined at 633 nm using a frequency stabilized transverse Zeeman laser. Measured PEC was found to vary from 0.15 to 0.63×10^<-12> Pa^<-1>, depending on composition. The concentration effects of OH, Al_2O_3 and BaO on PEC are studied. PEC increases with increasing Al_2O_3 concentration for metaphosphate glasses with BaO/P_20_5 = 1. On the other hand, PEC decreases monotonically with increasing BaO concentration. An empirical equation to predict PEC from glass composition is proposed. The correlation between PEC and glass structure, as evaluated by Raman spectroscopy is qualitatively discussed.
  • 光学応用のための無毒性硫化物ガラス及び薄膜(<特集>イノベーティブセラミックス(I))
    武部 博倫, 北川 良太, Hewak Daniel W., 日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 113, (1313) 37 - 43,   2005年01月01日, This article reviews the fabrication and properties of sulfide glasses and thin films consisting of non-toxic elements: alkaline-earth, rare-earth, germanium and gallium sulfides for optical applications. Refractive indexes, transmission and the fluorescence property of rare-earth ions in sulfide glasses are presented. Factors affecting rare-earth solubility in sulfide glasses are summarized. Thermally-stable BaS-Ga_2S_3-GeS_2 glasses for optical fibers and Nd^<3+>-doped transparent Ga-La-S-O glass-ceramics are described as new optical materials. Sm-doped SrS-Ga_2S_3 non-crystalline and nano-crystalline metallic SmS films were irradiated by focused femtosecond laser pulses and new photoinduced phenomena are introduced.
  • 第43回製錬関係研究会
    武部 博倫, 永井 燈文, Journal of MMIJ : journal of the Mining and Materials Processing Institute of Japan, 124, (2) 154 - 155,   2008年02月25日
  • Photoinduced phase transition of metallic SmS thin films by a femtosecond laser
    R. Kitagawa, H. Takebe, K. Morinaga, Applied Physics Letters, 82, (21) 3641 - 3643,   2003年05月26日, Photoinduced phase transition of metallic SmS thin films was discussed. Amplified mode-locked Ti:sapphire laser and grazing incidence x-ray diffraction (GIXD) were used. Results showed that there is a significant reflectance change of the thin films up to 45% in the near-infrared region which is accompanied by phase transition.
  • フォトニックガラス:物性と応用の新展開 多成分ガラスの光物性と光ファイバー応用
    武部博倫, 藤野茂, 森永健次, 光学, 32, (5) 311 - 313,   2003年05月10日
  • CaSの液相焼結
    平川敏弘, 武部博倫, 森永健次, 資源・素材学会春季大会講演集, (2) 9 - 10,   2003年03月27日
  • Sm含有Ga2S3系非晶質薄膜への微小凸部の高速光誘起形成
    武部博倫, 石橋俊行, 北川良太, 森永健次, 応用物理学関係連合講演会講演予稿集, 50th,   2003年03月27日
  • Solubility of dysprosium in germanium sulfide glasses
    Hiromichi Takebe, Toshiyuki Ishibashi, Takahiro Murata, Kenji Morinaga, Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan, 111, (1291) 168 - 170,   2003年03月01日, The solubility of Dy3+ ions in binary Ge-S glasses is studied. A mixture of Dy2S3, Ge and S raw materials in a silica ampoule was sealed under vacuum with 1-2 × 104 Pa, melted at 1000°C for 20 h with a slow rotation rate of < 1 rpm and then quenched to room temperature to form a glass. The solubility is evaluated by naked eye, optical microscopy and absorption measurements in glass samples. A linear relation between absorption coefficient and Dy2S3 concentration is obtained for the 6H15/2→6H9/12, 6F11/2 transition in the dissolved glasses. The dissolved concentration of Dy2S3 increases with decreasing S concentration in the Ge-excess compositions under 66.7 mol% S. A solubility model is proposed based on GeS2-like clusters existing in Ge-S glass melts. The dissolved concentration of Dy2S3 is at least 4 mass% (∼4 × 1026 Dy/m3) at 60-62 mol% S (38-40 mol% Ge). This relatively-high solubility is related to the existence of Ge2+ modifier ions as discussed in our previous study.
  • SmS薄膜の作製とフォトセンシティビティ
    北川良太, 武部博倫, 森永健次, セラミックス基礎科学討論会講演要旨集, 41st,   2003年01月22日
  • イオウ利用とナノテクノロジー 希土類ドープ硫化物ガラス及び非晶質薄膜の作製と光機能
    武部博倫, 北川良太, 森永健次, 資源・素材, 2002, (C/D) 207 - 210,   2002年09月23日
  • 複合材料 ZrO2/Ni複合材料の変形・破壊挙動に及ぼす分散状態の影響
    東藤貢, 新川和夫, 高橋清, 武部博倫, 森永健次, 材料, 51, (5) 489 - 494,   2002年05月15日
  • Effect of dispersiveness on the deformation and fracture behaviors of ZrO2/Ni composite materials
    Mitsugu Todo, Kazuo Arakawa, Kiyoshi Takahashi, Hiromichi Takebe, Kenji Morinaga, Zairyo/Journal of the Society of Materials Science, Japan, 51,   2002年05月01日, Six different types if ZrO2/Ni composite materials were fabricated by means of the slip casting method to study the effects of composition and dispersiveness on their deformation and fracture properties. The result of three-point bend testing indicated that the composition has significant influence on the bend strength and absorbed fracture energy with sufficient dispersiveness, whereas there was little effect on these properties with insufficient dispersiveness. The result of mode I fracture testing also exhibited that the critical mode I energy release rate, GIc, depended upon the composition, and the sufficient dispersiveness resulted in better GIc than the insufficient dispersiveness. The microstructures and fracture behaviors of the composites were examined using a laser microscope, an optical microscope with an image analysis technique and a scanning electron microscope (SEM). The result of the image analysis showed that the compositions of the sintered materials were different from those of the compacts. The SEM observation also exhibited that in the materials with insufficient dispersiveness, cracks tended to propagate along the interfaces of Ni aggregations, resulting in the degradation of the fracture properties.
  • Compositional variation in the structure of Ge-S glasses
    Hiromichi Takebe, Hiroki Maeda, Kenji Morinaga, Journal of Non-Crystalline Solids, 291,   2001年10月01日, X-ray photoelectron spectroscopy (XPS), and X-ray fluorescence (XRF) and Raman spectroscopies have been used to characterize the structure of Ge-S binary glasses in the compositional range 57-90 at.% S, together with evaluating the valences of Ge and S. XPS reveals that Ge4+ and Ge2+ states are formed and especially, Ge2+ exists in the range 57-62 at.% S. The roles of Ge4+- and Ge2+-relating species in glass structure are discussed. The combined results of XRF and Raman spectroscopies suggest that S-S bonds are present in all the S-rich glasses of 67 at.% S, short S chains are formed up to 76.5 at.% S and then S8 rings are formed at the S-richer side. The compositional dependence of the molar volume calculated from the measured densities of glasses is qualitatively related to the structural units of the Ge-S glasses. © Elsevier Science B.V. All rights reserved.
  • RS‐Ga2S3系ガラス(R:Ca,Sr,Ba)の生成領域と構造,物性
    石橋俊行, 武部博倫, 森永健次, 日本セラミックス協会秋季シンポジウム講演予稿集, 14th,   2001年09月26日
  • 非晶質カルコゲナイド 希土類イオンドープカルコゲナイドガラスの組成とその光学特性
    武部博倫, 森永健次, セラミックス, 36, (2) 84 - 87,   2001年02月01日
  • 希土類イオンドープカルコゲナイドガラスの組成とその光学特性
    武部 博倫, 森永 健次, セラミックス, 36, (2) 84 - 87,   2001年02月01日
  • Ge-Sガラスの作製条件と赤外透過性
    武部 博倫, 北川 良太, 平川 敏弘, 資源と素材 : 資源・素材学会誌 : journal of the Mining and Materials Processing Institute of Japan, 120, (10) 607 - 610,   2004年11月25日, Impurity bands in the infrared transmission spectra of Ge-S binary glasses are evaluated. Glass samples with various S concentrations were prepared by ordinary melt-quenching process using Ge and S raw materials and vacuumed fused quartz ampoules as containers. The infrared absorption bands of S-H, Si-O and Ge-O are observed in glasses with Ge-excess compositions over 66.7 at%S (GeS2). In S-excess glasses from 66.7 at%S, the bands due to CS2 and S-S bonds are additionally observed. All glasses have infrared transmission up to ∼ 10μm and the absorption edge is determined by the Ge-O impurity band. Possible origins of various impurities are qualititatively discussed.
  • Ge-S及びGe-Sb-Sガラスの作製条件と光透過性
    武部 博倫, 平川 敏弘, 北川 良太, 春季大会講演集. I, 資源編, 16, (2) 162 - 163,   2004年03月29日
  • Na_2O-GeO_2系ガラスの屈折率と分散
    三戸 貴之, 武部 博倫, 森永 健次, 日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 103, (1201) 886 - 890,   1995年09月01日, Accurate refractive indexes of Na_2O-GeO_2 glasses containing 5-30 mol% Na_2O were measured in the wavelength range of 0.334 to 1.710 μm using the minimum deviation method. The influence of glass structure on the refractive index and its dispersion has been discussed in terms of the number of the oxygen ion in a unit volume and the apparent refractivity of the oxygen ion. With the addition of Na_2O, the refractive index n_d increased at 5
  • CaS焼結体の作製とキャラクタリゼーション
    平川 敏弘, 岩崎 峰人, 武部 博倫, 森永 健次, 資源と素材 : 資源・素材学会誌 : journal of the Mining and Materials Processing Institute of Japan, 119, (12) 755 - 758,   2003年12月25日, Dense CaS ceramics were prepared by liquid-phase sintering with Ga2S3 additives (0 ∼ 1.0 mol%). A relative density of 96.2% was achieved by the sintering of CaS samples with 0.5mol% Ga2S3, fired at 1573K for 6h in Ar flow. Sintering process was investigated with scanning electron microscopy observations and linear shrinkage measurements. The sintering process of Ga2S3-doped CaS was found to be followed by 3 steps: (1) the rearrangement of CaS particles by CaS-Ga2S3 liquid, (2) the dissolution of CaS particles and the precipitation of CaS grains due to diffusion-controlled process and (3) the growth of precipitated CaS grains. X-ray diffraction and microstructural analyses with an energy dispersive X-ray fluorescence spectrometer revealed that sintered CaS has mainly CaS phase and CaS-Ga2S3 liquid segregated around grain boundaries. The thermal expansion coefficient of sintered CaS was 19.1 × 10-6/K in the range room temperature to 1273K. It was suggested that ceramic materials with similar thermal expansion coefficients are appropriate for the substrate of CaS based thin film electroluminescence.
  • 多成分ガラスの光物性と光ファイバー応用
    武部 博倫, 藤野 茂, 森永 健次, 光学, 32, (5) 311 - 313,   2003年05月10日
  • RS-Ga_2S_3系硫化物ガラス(R=Ca,Sr,Ba)の生成領域と構造
    石橋 俊行, 武部 博倫, 森永 健次, 日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 111, (1293) 308 - 311,   2003年05月01日, Gallium sulfide glasses were prepared in the RS-Ga_2S_3 (R = Ca, Sr, Ba) systems. Respective glass forming regions are 67.5-70.0 mol% CaS, 63.8-68.8 mol% SrS and 60.0-73.8 mol% BaS. Transmission spectra in the visible region, refractive index and glass transition and onset crystallization temperatures were measured for representative compositions of SrS- and BaS-Ga_2S_3 transparent glasses. Raman spectroscopy reveals that RS-Ga_2S_3 glasses consist of the network of GeS_4 tetrahedra due to the RS addition. The compositional dependence of molar volume indicates a plateau region at 65-70 mol% RS in SrS- and BaS-Ga_2S_3 glasses. The morphology of sulfur complex anions in RS-Ga_2S_3 glass melts is discussed using the sulfur-to-gallium ratio as a variable parameter. The combined results suggest that well-developed glass networks are formed near 66.7 mol% RS (S/Ga = 2.5) in the SrS- and BaS-Ga_2S_3 systems.
  • Compositional dependence of absorption spectra of Ti3+ in silicate, borate, and phosphate glasses
    Kenji Morinaga, Hideki Yoshida, Hiromichi Takebe, Journal of the American Ceramic Society, 77,   1994年12月01日, Absorption spectra of Ti3+ were measured for silicate, borate, and phosphate glasses doped with 0.5 mol% Ti2O3. The absorption coefficient at the peak wavelength of the 2T2→2E transition of Ti3+ is used as a parameter showing the relative content of Ti3+ ions in glass samples. The effect of glass composition on Ti3+/Ti4+ redox was studied. For multicomponent glasses, a basicity parameter calculated from glass composition is proposed in terms of coulomb force between the cation and the oxygen ion. The value of the absorption coefficient depends on basicity in silicate and borate glasses; however, it is independent of composition in phosphate glasses.
  • ホウ酸塩ガラスの高屈折率低分散性に及ぼす高原子価イオンの添加効果
    三戸貫之, 藤野茂, 武部博倫, 森永健次, 日本セラミックス協会学術論文誌, 102, (12) 1163 - 1167,   1994年12月01日, Refractive indexes of barium borate-based glasses were measured in the wavelength range from 0.265 to 1.710 μm by using the minimum deviation method. Factors affecting the refractive index dispersion are discussed by using the single-oscillator Drude-Voigt equation. Borate glasses are characterized by the larger number N of molecules in a unit volume than that for silicate glasses. The feature of borate glasses, that is, relative high refractive index and low dispersion, is dominated by the number N which is related to the fraction of four-coordinated borons estimated by Greenblatt and Bray. Borate glasses containing high valency cations, e.g., Y3+, La3+, Ti4+, Nb5+, Ta5+, possess higher refractive indexes and higher dispersion than barium borate binary glasses.
  • CaSの液相焼結
    平川 敏弘, 武部 博倫, 森永 健次, 春季大会講演集. I, 資源編, 15, (2) 9 - 10,   2003年03月27日
  • Ge-Sガラスにおけるジスプロシウムの溶解性
    武部 博倫, 石橋 俊行, 村田 貴広, 森永 健次, 日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 111, (1291) 168 - 170,   2003年03月01日, The solubility of Dy^<3+> ions in binary Ge-S glasses is studied. A mixture of Dy_2S_3, Ge and S raw materials in a silica ampoule was sealed under vacuum with 1-2 ×10^4 Pa, melted at 1000℃ for 20 h with a slow rotation rate of <1 rpm and then quenched to room temperature to form a glass. The solubility is evaluated by naked eye, optical microscopy and absorption measurements in glass samples. A linear relation between absorption coefficient and Dy_2S_3 concentration is obtained for the ^6H_<15/2>, ^6H_<9/2>, ^6H_<11/2> transition in the dissolved glasses. The dissolved concentration of Dy_2S_3 increases with decreasing S concentration in the Ge-excess compositions under 66.7 mol% S. A solubility model is proposed based on GeS_2-like clusters existing in Ge-S glass melts. The dissolved concentration of Dy_2S_3 is at least 5 mass% (〜4×10^<26> Dy/m^3) at 60-62 mol% S (38-40 mol% Ge). This relatively-high solubility is related to the existence of Ge^<2-> modifier ions as discussed in our previous study.
  • ZrO_2/Ni複合材料の変形・破壊挙動に及ぼす分散状態の影響(<特集>複合材料)
    東藤 貢, 新川 和夫, 高橋 清, 武部 博倫, 森永 健次, 材料, 51, (5) 489 - 494,   2002年05月15日, Six different types of ZrO_2/Ni composite materials were fabricated by means of the slip casting method to study the effects of composition and dispersiveness on their deformation and fracture properties. The result of three-point bend testing indicated that the composition had significant influence on the bend strength and absorbed fracture energy with sufficient dispersiveness, whereas there was little effect on these properties with insufficient disperiveness. The result of mode I fracture testing also exhibited that the critical mode I energy release rate, G_, depended upon the composition, and the sufficient dispersiveness resulted in better G_ than the insufficient dispersiveness. The microstructures and fracture behaviors of the composites were examined using a laser microscope, an optical microscope with an image analysis technique and a scanning electron microscope (SEM). The result of the image analysis showed that the compositions of the sintered materials were different from those of the compacts. The SEM observation also exhibited that in the materials with insufficient dispersiveness, cracks tended to propagate along the interfaces of Ni aggregations, resulting in the degradation of the fracture properties.
  • やさしいニューガラス講座 Judd-Ofelt理論と希土類イオン周辺のガラス構造の関係について
    武部 博倫, 村田 貴広, 森永 健次, ニュ-ガラス, 17, (4) 40 - 43,   2002年
  • Preparation and properties of germanium sulfide glasses
    Hiromichi Takebe, Kenji Morinaga, Proceedings of the Second International Conference on Processing Materials for Properties,   2000年12月01日, Ge-S binary glasses in the range 57 to 90 at%S at 0.5 to 3 at%S intervals were prepared by a conventional melting technique using fused quartz ampoules as melting containers. Impurities contaminated during preparation process are evaluated by IR spectroscopy. The causes of impurity contaminations are discussed. Density data in a systematic series of Ge-S glasses is demonstrated.
  • Fabrication of Zirconia-Nickel Functionally Gradient Materials by Slip Casting and Pressureless-Sintering
    Hiromichi Takebe, Kenji Morinaga, Materials and Manufacturing Processes, 9,   1994年07月01日, A powder processing technique has been developed for the fabrication of tetragonal zirconia-nickel functionally gradient materials using slip casting and pressureless-sintering. Rheological behavior of slips was studied. Single-layer zirconia-nickel green compacts with various zirconia/nickel volume ratios were characterized by permeability and pore radius. A multilayer zirconia-nickel green compacts with a stepwise compositional gradient was formed and sintered in argon atmosphere. One of the keys to successful fabrication was to minimize differences in permeability and pore radius between neighbouring layers in a multilayer green compact to avoid fracture during drying in an ambient atmosphere. © 1994, Taylor & Francis Group, LLC. All rights reserved.
  • コーディエライトガラスの加熱過程における相変態
    浅山英一, 武部博倫, 森永健次, 日本金属学会誌, 58, (7) 720 - 727,   1994年07月01日, Phase transformations of cordierite (2MgO·2Al 2O 3·5SiO 2) glasses have been studied by X-ray diffraction, differential thermal analysis (DTA), optical microscopy (OM), and transmission electron microscopy (TEM). Continuous-Heating-Transformation (CHT) diagram and Time-Temperature-Transformation (TTT) diagrams are proposed. Continuous heating of bulk and powder glasses at 0.005 to approximately 0.33 K/s leads to the initial crystallization of μ-cordierite and subsequent μ→α transformation. There are two transformation processes in isothermal treatments of bulk glasses at 1123 to approximately 1473 K: One is the transformation from μ-cordierite to α-cordierite and the other is the direct crystallization from glass to α-cordierite . The microstructures of α-cordierite are affected by the transformation processes. The α-cordierite crystals transformed from μ-cordierite crystals contain microcracks, dislocations, and planar faults. The α-cordierite crystals formed directly from the glass show needle-like segments extending three dimensionally from the center. For powder glasses, isothermal treatments at 1123 to approximately 1473 K lead only to the μ→α transformation. This is due to the predominant nucleation of μ-cordierite on the surface of the glasses.
  • Ge‐S系硫化物ガラスの分子構造と密度
    武部博倫, 前田浩希, 森永健次, 日本セラミックス協会秋季シンポジウム講演予稿集, 13th,   2000年10月11日
  • 硫化物の物性と製造プロセス 硫化物ガラスの構造と物性
    森永健次, 武部博倫, 金属, 70, (8) 617 - 622,   2000年08月01日
  • 硫化物ガラスの構造と物性 (特集 硫化物の物性と製造プロセス)
    森永 健次, 武部 博倫, 金属, 70, (8) 617 - 622,   2000年08月
  • 硫化物ガラスの構造と物性
    金属, 70, (8) 617 - 622,   2000年
  • Thermal properties of Ga2S3-based glass and their consideration during fiber drawing
    Hiromichi Takebe, Dominic J. Brady, Daniel W. Hewak, Kenji Morinaga, Journal of Non-Crystalline Solids, 258, (1/3) 239 - 243,   1999年11月01日, Thermal properties of gallium-lanthanum sulphide and oxysulphide glasses relevant to fiber applications are evaluated. Time-temperature-transformation diagrams of gallium-lanthanum sulphide and oxysulphide glasses are presented based on the results of X-ray diffraction analysis and microstructural observations. Thermal stability of these glasses for fiber drawing is discussed along with the viscosity data of supercooled liquid samples. Favourable fabrication conditions for gallium-lanthanum sulphide glass fibers are proposed to minimize microcrystal formation during heating.
  • 硫化物ガラスの構造と光学特性
    森永健次, 武部博倫, 資源・素材, 1999, (D) 137 - 140,   1999年11月01日
  • Slip casting of continuous functionally gradient material
    Judy Chu, Hirotaka Ishibashi, Koichi Hayashi, Hiromichi Takebe, Kenji Morinaga, Journal of the Ceramic Society of Japan. International ed., 101,   1993年07月01日, The basic principle behind this study is the utilization of the density difference among the species used and the size difference among the particles within the powders used to influence the sedimentation velocity of particles in a slip. A continuous functionally gradient material was fabricated using the slip casting method. This material is different from conventional functionally gradient materials prepared by other methods in that the composition of this material varies continuously rather than in a layer-by-layer fashion. In a continuous functionally gradient material, problems associated with interfaces between layers or films of different compositions, which are shared among almost all conventional functionally gradient materials, are eliminated. An Al2O3-W-Ni-Cr system was used in this study. Processing conditions were reported. Compositional gradients within this type of samples were examined. Thermal expansion, fracture toughness, hardness, and electrical resistance were evaluated.
  • 連続的な傾斜機能材料のスリップキャスティング
    石橋 弘孝, 林 浩一, 武部 博倫, 森永 健次, 森永 健次, 日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 101, (1175) 841 - 844,   1993年07月01日, The basic principle behind this study is the utilization of the density difference among the species used and the size difference among the particles within the powders used to influence the sedimentation velocity of particles in a slip. A continuous functionally gradient material was fabricated using the slip casting method. This material is different from conventional functionally gradient materials prepared by other methods in that the composition of this material varies continuously rather than in a layer-by-layer fashion. In a continuous functionally gradient material, problems associated with interfaces between layers or films of different compositions, which are shared among almost all conventional functionally gradient materials, are eliminated. An Al_2O_3-W-Ni-Cr system was used in this study. Processing conditions were reported. Compositional gradients within this type of samples were examined. Thermal expansion, fracture toughness, hardness, and electrical resistance were evaluated.
  • 硫化物ガラスの構造と光学特性
    森永 健次, 武部 博倫, 資源・素材, 1999, (3) 137 - 140,   1999年11月01日
  • High second-order optical nonlinearities in thermally poled sol-gel silica
    V. Pruneri, G. Bonfrate, P. G. Kazansky, H. Takebe, K. Morinaga, M. Kohno, K. Kuwasaki, T. Takeuchi, Applied Physics Letters, 74,   1999年05月03日, The thermal poling-induced high-order optical nonlinearities, located under the anodic surface, in sol-gel-modified silica were studied. The results were modeled, indicating the difference between thermal poling of sol-gel and fused silica. The structure and electrical properties at the grain boundaries affects the poling process.
  • Ge-SおよびGa-S系硫化物ガラスの組成と特性
    武部 博倫, 森永 健次, 資源・素材, 1998, (4) 59 - 62,   1998年11月01日
  • 光学材料のための酸化物,ハロゲン化物,硫化物の高純度化に関する調査研究
    森永健次, 山村力, 真保良吉, 不破章雄, 武部博倫, 藤野茂, 八島勇, 石渡正治, 新藤裕一郎, 日本鉱業振興会助成研究成果報告書, 1998,   1998年11月
  • Refractive index dispersion of gallium lanthanum sulfide and oxysulfide glasses
    Hiroyuki Yayama, Shigeru Fujino, Kenji Morinaga, Hiromichi Takebe, Hiromichi Takebe, Daniel W. Hewak, David N. Payne, Journal of Non-Crystalline Solids, 239, (1/3) 187 - 191,   1998年10月01日, Refractive indexes were measured for Ga2S3-La2S3 and Ga2S3-La2O3 samples in the range of 0.48-1.71 nm using the minimum deviation method. Data are analyzed by the Wemple equation, which is based on the single-oscillator model. These samples have relatively large average bandgaps, E0, and electronic oscillator strengths, Ed, in comparison with other chalcogenide glasses. Possible origins of these features are discussed. © 1998 Elsevier Science B.V. All rights reserved.
  • 高純度Ge-Ga-S系ガラスの作製法とNd^<3+>イオンの溶解性
    升田 裕久, 阿部 勝巳, 武部 博倫, 森永 健次, 資源と素材 : 資源・素材学会誌 : journal of the Mining and Materials Processing Institute of Japan, 114, (8) 581 - 584,   1998年08月25日, The preparation process of Ge-Ga-S glasses is studied and its glass-forming region is presented. The effects of Ga and S contents on properties:glass transition temperature, density, and refractive index are investigated. The S content dependence of glass transition temperature and refractive index are divided into three regions relating to three bond types:1)the cation excess region with the contribution of Ge-Ge bonds, 2)an anion excess region with the dominant contributions of GeS2 tetrahedra connected by the S-S bonds, and 3)the other anion excess region with the contributions of S-S bonds and S8 rings. The solubilities of rare earth ion, Nd3+ in Ge-Ga-S, Ge-In-S and Ge-Sb-S glass systems are discussed using ionicity parameter, which based on the electronegativity between cation and sulfide anion.
  • Point defects and chromium(IV) formation mechanism in gallia- and alumina-based oxide glasses
    Takahiro Murata, Masanori Torisaka, Hiromichi Takebe, Hiromichi Takebe, Kenji Morinaga, Kenji Morinaga, Journal of the American Ceramic Society, 81,   1998年08月01日, Point defects were found in as-quenched GeO 2, 65CaO· 35Al 2O 3, and 65SrO·35Ga 2O 3 glasses on the basis of electron paramagnetic resonance (EPR) measurements. These defects were identified as Ge E′ centers in GeO 2 glass and O 2, O 3, and M-OHC (oxygen hole center) (where M = Al, Ga) in 65CaO·35Al 2O 3 and 65SrO·35Ga 2O 3 glasses. The formation of Ge E′ centers in as-quenched GeO 2 glass was due to the thermodynamic stability of GeO at the melting temperature. The latter oxygen-excess defects are supposed to be formed by excess oxygen ions derived from the modifiers in the aluminate and gallate glasses during the formation of these glasses. To investigate some of the properties of the oxygen-excess defects in the calcium aluminate and strontium gallate glasses, chromium ions were doped in these glasses as a probe and the relationship between the valency state of the chromium ion and the defects was determined. We conclude that the peroxy bonding (-O-O-) oxidizes the Cr 3+ species to Cr 4+. Similar defects have been identified in host compounds that are used for Cr 4+ tunable lasers. These results reveal that the point defects are necessary to stabilize the Cr 4+ ions in glasses and crystals.
  • 高純度Ge‐Ga‐S系ガラスの作製法とNd3+イオンの溶解性
    升田裕久, 阿部勝巳, 武部博倫, 森永健次, 資源と素材, 114, (8) 581 - 584,   1998年08月
  • Compositional dependence of infrared-to-visible upconversion in Yb 3+- and Er 3+-codoped germanate, gallate, and tellurite glasses
    Takahiro Murata, Hiromichi Takebe, Hiromichi Takebe, Kenji Morinaga, Kenji Morinaga, Journal of the American Ceramic Society, 81,   1998年01月01日, Upconversion fluorescences of the green 4S 3/2 → 4Il5/2 and red 4F 9/2 → 4I 15/2 transitions of the Er 3+ ion are studied for Yb 3+- and Er 3+-codoped sodium germanate, potassium tantalum gallate, and barium tellurite glasses by InGaAs laser-diode pumping. The phonon energies of the host glasses are determined by infrared-reflection measurements. Compositional effects on the Judd-Ofelt parameters for the Er 3+ ion, the spontaneous emission probability (SPE) of the 2F 5/22F 7/2 transition for the Yb 3+ ion, and the phonon energy of the glass network are discussed in terms of glass structure. The factors that affect the upconversion fluorescence intensities of the Er 3+ ion are discussed, using the phonon energy of the host glass and the SPE for the Yb 3+ ion in the germanate, gallate, and tellurite glasses.
  • Ge‐SおよびGa‐S系硫化物ガラスの組成と特性
    武部博倫, 森永健次, 資源・素材, 1998, (D) 59 - 62,   1998年
  • 押出し成形によるアルミナシートの作製
    武部 博倫, 吉田 正知, 林 浩一, 森永 健次, 日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 100, (1161) 750 - 754,   1992年05月01日, Alumina suspensions for extrusion were prepared by adding metylcellulose and glycerol to a system of water, ammonium polyacrylic acid, and alumina powder. The effect of the additives on the rheology of mixtures was evaluated. The mixtures which could be formed into a sheet of less than 100 μm in thickness showed Bingham flow characteristics. As the flow characteristics of the mixture, an empirical equation, P/k=A+B ln R, was obtained, where P is the extrusion pressure for forming alumina sheets, k is the apparent yield stress of the mixture, A and B are constants, and R is the extrusion ratio. The effect of methylcellulose and glycerol on the particle packing and the flexibility of alumina green sheets was discussed. A dense, translucent, alumina sheet of 80μm thick was obtained after firing at 1400℃ for 4 h.
  • Poled glass optical communication devices
    V. Pruneri, F. Samoggia, G. Bonfrate, H. Takebe, P. G. Kazansky, IEE Conference Publication,   1997年12月01日, Optical glass waveguides are widely used in information technology because of their excellent optical properties, including low loss and low fabrication costs. However, such components also have their shortcomings. They are incapable of generating second-order nonlinearity, which prevents linear electrooptic effect and frequency conversion of coherent radiation. One promising breakthrough in this field is the use of poled glass. The advantages of this material over other types of optical glasses are discussed.
  • ジルコニアーニッケル傾斜機能材料開発のためのパウダープロセッシング技術
    武部 博倫, 手島 卓也, 中島 真澄, 森永 健次, 日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 100, (1160) 387 - 391,   1992年04月01日, A powder processing technique is developed for the fabrication of tetragonal zirconia-nickel functionally gradient materials. The powder volume fraction, the linear shrinkage during drying, and the pore radius of monolithic zirconia-nickel green compacts with various zirconia/nickel volume ratios were measured. A multilayer zirconia-nickel green compact with a stepwise compositional gradient was formed by slip casting and then pressureless-sintered. The key to successful fabrication is to avoid the fracture of green compact during drying process in an ambient atmosphere. In conclusion, it is desirable to minimize differences in permeability and pore radius between neighboring layers in a multilayer green compact.
  • AIN 焼結体の酸素と水蒸気による酸化
    黒光 祥郎, 吉田 秀昭, 大野 進司, 升田 裕久, 武部 博倫, 森永 健次, 日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 100, (1157) 70 - 74,   1992年01月01日, Oxidation behavior of sintered AlN by oxygen and water vapor was studied at 1400°C for the purpose of surface treatment. The partial pressure of oxygen, Po2 was controlled at 10-10 and 10kPa, and that of water vapor, PH2O was changed at 5.0×10-2 to 8.5kPa. The oxidation product detected by XRD was α-Al2O3. Oxidation rate was increased with increasing PH2O. The weight gain with time by oxygen was parabolic, and that by water vapor was linear. The Al2O3 layer formed by the oxidation of sintered AlN with oxygen was relatively dense, and coherent. The oxidation kinetics were discussed using the mixed-control rate equation on the basis of unreacted-core model.
  • Compositional dependence of the valency state of Cr ions in oxide glasses
    Takahiro Murata, Masanori Torisaka, Hiromichi Takebe, Kenji Morinaga, Journal of Non-Crystalline Solids, 220,   1997年11月01日, Absorption spectra of Cr ions in multi-component oxide glasses melted in Ar were measured. The integrated extinction coefficient is used as a parameter to analyze the redox reaction of Cr3+ and Cr6+ in glass samples. The relative content of Cr6+ increased and that of Cr3+ decreased with increasing basicity in silicate and borate glasses; this result is consistent with previous studies. On the contrary, only Cr3+ ions exist in phosphate glasses. Cr4+ ions were found only in aluminate, gallate and alumino-silicate glasses with modifier contents >60 mol%. The relationship between point defects and Cr4+ formation is examined on the basis of electron spin resonance measurements. We concluded that the superoxide ion radical (O-2) and the peroxy bonding (-O-O-) oxidize Cr3+ to Cr4+ in aluminate, gallate, and alumino-silicate glasses. © 1997 Elsevier Science B.V.
  • 高純度硫化物ガラスの作製法および基礎物性
    藤野 茂, 武部 博倫, 森永 健次, 資源・素材, 1997, (2) 81 - 84,   1997年09月23日
  • Spectroscopic properties of Nd3+ and Pr3+ in gallate glasses with low phonon energies
    Hiromichi Takebe, Kiminori Yoshino, Takahiro Murata, Kenji Morinaga, Jason Hector, William S. Brocklesby, Daniel W. Hewak, Ji Wang, David N. Payne, Applied Optics, 36,   1997年08月20日, Absorption and fluorescence spectra of Nd3+ were measured in potassium tantalum gallate, lead bismuth gallate (PBG), fluorozirconate (ZBLAN), and Ge-Ga-S glasses. A Judd-Ofelt analysis was performed to determine the spontaneous emission probability and stimulated emission cross section of the 4F3/2→ 4I11/2 transition of Nd3+. Raman spectra were studied to clarify the maximum phonon energies of the glasses. The fluorescence of the 1G4 → 3H5 transition of Pr3+ in a dehydrated PBG glass was observed for the first time to our knowledge. The PBG glass has a higher quantum efficiency than that of ZBLAN glass based on the Judd-Ofelt analysis. © 1997 Optical Society of America.
  • Glass fiber poling and applications
    Peter G. Kazansky, Philip St J Russell, Hiromichi Takebe, Journal of Lightwave Technology, 15,   1997年08月01日, Silica glass is a widely used material in optoelectronics largely because of its low fabrication cost and excellent optical properties. Its importance is further enhanced by the discovery that exposure to UV light causes permanent changes in the material's refractive index at communications wavelength. A second order of this type of nonlinearity can be produced using poling techniques.
  • オプトエレクトロニクスガラスの屈折率とその波長及び温度依存性
    武部博倫, 日本板硝子材料工学助成会成果報告書, 15,   1997年07月
  • Preparation and properties of Ge-Ga-S glasses for laser hosts
    Katsumi Abe, Hiromichi Takebe, Kenji Morinaga, Journal of Non-Crystalline Solids, 212, (2/3) 143 - 150,   1997年06月01日, The preparation and purification of Ge-Ga-S glasses were studied. A purified glass doped with 1000 ppm Pr 3+ exhibits a quantum efficiency of 50% in the 1G 4-→ 3H 5 transition at 1.3 μm based on fluorescence lifetime measurement and Judd-Ofelt analysis. The effects of Ga and S contents on glass transition and crystallization temperatures, density, refractive index and spontaneous emission probabilities from the 4F 3/2 level of Nd 3+ were examined. Compositional dependences of properties are discussed in terms of bond types.
  • Interaction between alumina and binary glasses
    Yoshirou Kuromitsu, Hideaki Yoshida, Hiromichi Takebe, Hiromichi Takebe, Hiromichi Takebe, Kenji Morinaga, Kenji Morinaga, Kenji Morinaga, Journal of the American Ceramic Society, 80,   1997年06月01日, Interaction between 96% alumina and three binary glasses used as frits in thick-film technology is studied. A possible interfacial reaction mechanism where a melt glass penetrates into the alumina through the grain boundaries dissolving SiO 2, one of the grain boundary components, is suggested. The formulation expressing the glass penetration rate into the alumina based on Poiseuille's law, assuming the driving force for the glass penetration is the capillary force, is consistent with the experimental growth rate of the reaction layer in the alumina. The formulation also clearly explains the relationship of the degree of glass penetration to the viscosity and the surface tension of the melt glass. The extraordinary difference in K, designated as the coefficient of penetration, between the calculated result and the experimental result suggests that the process of dissolving SiO 2 into a melt glass at the alumina grain boundaries retards the glass penetration.
  • Refractive index and material dispersions of multi-component oxide glasses
    Takayuki Mito, Shigeru Fujino, Hiromichi Takebe, Kenji Morinaga, Shin Ichi Todoroki, Shigeki Sakaguchi, Journal of Non-Crystalline Solids, 210,   1997年03月01日, Refractive index dispersion curves in the wavelength region of 0.40 to 5.03 μm are presented for multi-component oxide glass systems: borate, silicate, aluminate, germanate, tellurite, antimonate and heavy metal gallate. The material dispersion was determined using the refractive index data. Reflection spectra in the ultraviolet and infrared regions were measured to investigate the effects of electronic transitions and lattice vibrations on the material dispersion. Thallium tellurite, thallium antimonate and lead gallate glasses exhibit zero material dispersion wavelengths (ZMDWs) over 2.4 μm. The factors affecting the ZMDW are discussed.
  • 焼結法による無水・透明シリカガラスの作製条件
    呉 龍澤, 武部 博倫, 森永 健次, 日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 105, (1218) 171 - 174,   1997年02月01日, Green compacts of high-purity silica powders with different particle sizes were formed by slip casting method and pressureless-sintered. Conditions to fabricate transparent silica glasses are presented using diagrams described by sintering-temperature and -time. The variation of linear shrinkage with time reveals that the sintering mechanism at its early stage follows the viscous flow of silica glass particles. The effect of firing schedule on residual OH concentration was studied for transparent sintered silica glasses. A green compact prepared by silica powders with a mean particle size of 1.6 μm was fired at 1573 K for 3h for dehydration and heated up to 1873 K for densification; this typical fabrication condition results in a transparent sintered silica glass with <1 ppm OH concentration.
  • 焼結法による無水・透明シリカガラスの作製条件
    O Y‐T, 武部博倫, 森永健次, 日本セラミックス協会学術論文誌, 105, (2) 171 - 174,   1997年02月
  • Frequency doubling in gallium-lanthanum-sulphide optical glass with microcrystals
    V. Pruneri, P. G. Kazansky, D. Hewak, J. Wang, H. Takebe, H. Takebe, D. N. Payne, Applied Physics Letters, 70,   1997年01月13日, Second harmonic generation in gallium-lanthanum-sulphide (Ga:La:S) and germanium sulphide + Ga:La:S glasses is investigated. It is shown that microcrystals of Ga:La:S and a phase of gallium-sulphide (α-Ga2S3), whose presence in the glass matrix is revealed by energy dispersive spectroscopy and x-ray diffraction analysis, are responsible for the frequency doubling process. © 1997 American Institute of Physics.
  • 高純度硫化物ガラスの作製法および基礎物性
    藤野茂, 武部博倫, 森永健次, 資源・素材, 1997, (B) 81 - 84,   1997年
  • Crystalization processes of glasses
    Kenji Morinaga, Hiromichi Takebe, Berichte der Bunsengesellschaft/Physical Chemistry Chemical Physics, 100,   1996年12月01日, To prepare α-cordierite glass ceramics, we demonstrate two types of phase diagrams of a composition 2MgO·2Al2O3·5SiO2 with time courses. One is the continuous-cooling-transforrnation (CCT) diagram; the other is the temperature-time-transformation (TTT) diagram. At - 1273 K, n-cordierite is crystallized as the primary phase and then it transforms to a-cordierite with a lath-like martensite transformation. The volume expansion derived from this transformation results in a lot of cracks in crystallized glasses. Since the addition of MgF2 for the substitution of MgO (ca. 5%) suppresses the u-to a-cordierite transformation but promotes the direct crystallization of α-cordierite from glass, we can prepare α-cordierite glass ceramics without cracks. In this paper, we point out the needs and usefulness of CCT and TTT diagrams for glass ceramics processing. © VCH Verlagsgesellschaft mbH, 1996.
  • 超音波顕微鏡によるイットリア添加正方晶ジルコニア多結晶体における正方晶から単斜晶への相変態過程の検討
    武部博倫, 岡野恒也, 仙波卓弥, 森永健次, 日本金属学会誌, 54, (12) 1358 - 1362,   1990年12月01日, The tetragonal to monoclinic transformation in Y-TZP specimens and mullite/Y-TZP composites containing 5 vol% mullite, which progresses from surface to interior by annealing at 373 K in boiling water, was investigated by a scanning acoustic microscope (SAM). The Rayleigh wave velocity, VR, which was measured on the surfaces of the specimens, was lowered by the transformation. The depth after the annealing for 612.0 ks was 7.2 μm, while in the mullite/Y-TZP composites it was less than 1.0 μm. The relationships suggest that a nucleation growth stage existed in the process of transformation. The transformation mechanism is discussed from changes of the transformation depth and SAM image contrast with annealing time.
  • Compositional dependence of optical properties of Nd3+ in gallate glasses
    Hiromichi Takebe, Takahiro Murata, Hiroyuki Nishida, Daniel W. Hewak, Kenji Morinaga, Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan, 104,   1996年12月01日, The Judd-Ofelt parameters, spontaneous emission probabilities from the 4F3/2 level, quantum efficiency, and stimulated emission cross section of the 4F3/2→4I11/2 transition for Nd3+ are studied for potassium tantalum and lead bismuth gallate glasses. The results reveal that the tantalum gallate glasses have high Ω2 values being comparable to that of Ge-Ga-S glass. The lead bismuth gallate glasses have high stimulated emission cross sections over 4 pm2 because of their high refractive indexes. The variations of the JO parameters with composition are discussed in terms of glass structure.
  • サーマルポーリングによるガラスの2次非線形光学特性
    武部 博倫, 和田 憲幸, 森永 健次, 資源・素材, 1996,   1996年10月21日
  • 新しいファイバーレーザーのための希土類イオン含有低フォノンエネルギーガラスの光学特性
    武部 博倫, 芳野 公則, 阿部 勝巳, 森永 健次, 資源・素材, 1996,   1996年10月21日
  • Pr3+含有及びYb3+/Pr3+共含有重金属ガリウム酸塩ガラスの発光特性
    武部博倫, 芳野公則, 森永健次, HECTOR J, 応用物理学会学術講演会講演予稿集, 57th,   1996年09月
  • 溶融石英ガラスのポーリング過程での電流と第2高調波発生
    和田憲幸, 武部博倫, 森永健次, KAZANSKY P G, RUSSELL P ST J, 応用物理学会学術講演会講演予稿集, 57th,   1996年09月
  • Formation of superconductor phases in the solidification of Bi-Sr-Ca-Cu-O melt
    Katsuhiro Kumadaki, Eiichi Asayama, Hiromichi Takebe, Kenji Morinaga, Metallurgical Review of MMIJ (Mining and Metallurgical Institute of Japan), 13,   1996年07月01日, Bi2Sr2Ca2Cu3Ox (2223) phase is not formed but Bi2Sr2Ca2Cu3Ox (2212) and Bi2Sr2CuOx (2201) phases are observed during continuous cooling processes with the rates of 0.001 - 10°C/s. The time-temperature-transformation (TTT) diagram in the solidification of the melt is proposed based on X-ray diffraction (XRD) analysis. The high-Tc superconductor phase 2223 is formed through isothermal treatments at 850°C for over 150 ks. The results of XRD and scanning electron micrograph with energy dispersive X-ray microanalysis for the isothermal treatment show that 2201 needles are crystallized at the interface between the (Ca, Sr)2CuO3 crystal and the retaining super cooled liquid, and then a part of the 2201 phases transforms to 2212 and 2223 phases by the diffusion of Ca, Sr, and Cu ions.
  • 凝固過程におけるコーディエライトセラミックスの相変態
    武部博倫, 森永健次, 日本金属学会誌, 54, (5) 556 - 561,   1990年05月01日, The condition to get a cordierite (2MgO·2Al2O3·5SiO2) ceramics by the solidification of the melt has been discussed. 'Low'-cordierite and μ-cordierite were identified in the process of the isothermal transformation at 1623-1673 K and 1223-1253 K, respectively. The μ-cordierite was transformed to the α-cordierite with increasing holding time of sample at 1223-1253 K. TTT diagram in the solidification of cordierite melt was measured. From the result of TEM, planar faults and dislocations were observed so that the transformation of μ-cordierite to α-cordierite was similar to the isothermal martensite transformation that occurred in the carbon steel.
  • Yb3+,Pr3+共含有低フォノンエネルギーガラスの光学特性
    芳野公則, 武部博倫, 森永健次, 日本金属学会・日本鉄鋼協会九州支部合同学術講演会講演概要集, 90th,   1996年06月
  • Section 4. Linear optical and mechanical properties of glasses: Refractive index dispersion of gallium lanthanum sulfide and oxysulfide glasses
    Hiroyuki Yayama, Shigeru Fujino, Kenji Morinaga, Hiromichi Takebe, Hiromichi Takebe, Daniel W. Hewak, David N. Payne, Journal of Alloys and Compounds, 239,   1996年05月15日, Refractive indexes were measured for Ga2S3-La2S3 and Ga2S3-La2O3 samples in the range of 0.48-1.71 μm using the minimum deviation method. Data are analyzed by the Wemple equation, which is based on the single-oscillator model. These samples have relatively large average bandgaps, E0, and electronic oscillator strengths, Ed, in comparison with other chalcogenide glasses. Possible origins of these features are discussed. © 1998 Elsevier Science B.V. All rights reserved.
  • Effect of poling conditions on second-harmonic generation in fused silica
    H. Takebe, H. Takebe, P. G. Kazansky, P. St J Russell, K. Morinaga, Optics Letters, 21,   1996年04月01日, A systematic study of the effects of poling time and applied voltage on second-harmonic (SH) generation in thermally poled silica glass reveals that the SH signal is proportional to the square of the applied voltage and that the speed of the poling process increases with the applied voltage. Prior treatment of the samples is found to affect the poling process, and the optimum poling conditions are observed to depend on the poling atmosphere. The mechanism of thermal poling is discussed in the light of these new results. © 1996 Optical Society of America.
  • レーザーホストとしての硫化物ガラスの作製法および物性
    阿部勝巳, 武部博倫, 森永健次, 日本セラミックス協会年会講演予稿集, 1996,   1996年04月
  • Nd^3含有酸化物,フッ化物及び硫化物ガラスの光学特性
    武部 博倫, 森永 健次, 一般発表(研究・業績発表)講演要旨集, 1996,   1996年03月29日
  • Compositional dependence of absorption and fluorescence of Yb3+ in oxide glasses
    Hiromichi Takebe, Hiromichi Takebe, Takahiro Murata, Kenji Morinaga, Kenji Morinaga, Journal of the American Ceramic Society, 79,   1996年03月01日, The integrated absorption cross section, the spontaneous emission probability, and the stimulated emission cross section of Yb3+ were determined in silicate, phosphate, borate, germanate, aluminate, gallate, and ZBLAN host glasses. The compositional dependence of the stimulated emission cross section of the 2F5/2 → 2F7/2 transition is determined mainly by the integrated absorption cross section in the glasses. A peak stimulated emission cross section above 1 pm2, which is the highest value in glasses, was obtained in a gallate glass with a composition of 40K2O·20Ta2O5· 40Ga2O3. The factors affecting the integrated absorption cross section are discussed using the Judd-Ofelt parameters of Er3+ calculated in previous studies.
  • ガリウム酸塩ガラスにおけるNb^<3+>の光学特性の組成依存性
    武部 博倫, 村田 貴広, 西田 博之, HEWAK Daniel. W., 森永 健次, 日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 104, (1207) 243 - 246,   1996年03月01日, The Judd-Ofelt parameters, spontaneous emission probabilities from the ^4F_<3/2> level, quantum efficiency, and stimulated emission cross section of the ^4F_<3/2>→^4I<11/2> transition for Nd^<3+> are studied for potassium tantalum and lead bismuth gallate glasses. The results reveal that the tantalum gallate glasses have high Ω_2 values being comparable to that of Ge-Ga-S glass. The lead bismuth gallate glasses have high stimulated emission cross sections over 4 pm^2 because of their high refractive indexes. The variations of the JO parameters with composition are discussed in terms of glass structure.
  • Nd3+含有酸化物,フッ化物及び硫化物ガラスの光学特性
    武部博倫, 森永健次, 資源・素材学会研究・業績発表講演会講演要旨集, 1996,   1996年03月
  • 酸化物ガラスにおけるCrイオン原子価の組成依存性
    鳥坂昌徳, 武部博倫, 森永健次, 日本金属学会講演概要, 118th,   1996年03月
  • 溶融石英ガラスの2倍高調波に及ぼすポーリング条件の影響
    武部博倫, 森永健次, KAZANSKY P G, RUSSELL R ST J, 応用物理学関係連合講演会講演予稿集, 43rd,   1996年03月
  • III‐V酸化物融体の物性と構造 (文部省S)
    森永健次, 武部博倫, 無機融体化学の新展開 平成7年度 No.07355021,   1996年
  • 酸化物ガラスにおけるCuイオンのRedox
    粟村哲利, 武部博倫, 森永健次, 日本金属学会・日本鉄鋼協会九州支部合同学術講演会講演概要集, 87th,   1995年06月
  • 希土類イオン含有酸化物、フッ化物及びカルコゲナイドガラスの Judd-Ofeltパラメータ
    西田 博之, 武部 博倫, 森永 健次, 希土類 = Rare earths, (26) 150 - 151,   1995年05月11日
  • 溶湯連続測温用h‐BNの常圧焼結
    栗田澄彦, 中島真澄, 武部博倫, 森永健次, 資源と素材, 105, (2) 201 - 204,   1989年02月01日, Pressureless sintered hexagonal boron nitride (h-BN) was fabricated using turbostratic BN and amorphous B as starting powders. Bulk density and bending strength of the sintered BN with additives were increased compared to using pure h-BN as a starting powder. In sintered BN with 5 wt%SiC, high bending strength of 9 kg/mm 2 was obtained in the range room temperature to 1200°C. On the other hand, sintered BN with 30 wt%AlN had superior corrosion resistance. These materials are applicable for the protective tube in continuous temperature measurement of molten steel in the range 1500 to 1560°C.
  • 希土類イオン含有酸化物,フッ化物及びカルコゲナイドガラスのJudd‐Ofeltパラメータ
    西田博之, 武部博倫, 森永健次, 希土類, (26) 150 - 151,   1995年05月
  • 重金属ガリウム酸塩ガラスの光学特性に及ぼすPbO, Bi_2O_3及びTl_2Oの置換効果
    藤野 茂, 武部 博倫, 森永 健次, 日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 103, (1196) 340 - 345,   1995年04月01日, The effects of composition on refractive index, density, glass transition temperature, and ultaviolet-visible and infrared transmissions were studied for gallate glasses containing a large amount (80 mol%) of PbO, Bi_2O_3 and Tl_2O. The resonance wavelengths of Pb^<2+>Bi^<3+> and Tl^+ were determined from the reflection spectra of gallate glasses. The refractive indexes of gallate glasses were measured down to the fourth decimal in the wavelength range of 480 nm to 1710 nm using the minimum deviation method. Refractive index in the system Bi_2O_3-PbO-Ga_2O_3 increases as PbO is substituted for Bi_2O_3. Refractive index in the systems Tl_2O-PbO-Ga_2O_3 and Tl_2O-Bi_2O_3-Ga_2O_3 increases as Tl_2O content increases. Factors affecting the refractive index of heavy metal gallate glasses are discussed by using the single-oscillator Drude-Voigt equation.
  • 重金属ガリウム酸塩ガラスの光学特性に及ぼすPbO,Bi2O3及びTl2Oの置換効果
    藤野茂, 武部博倫, 森永健次, 日本セラミックス協会学術論文誌, 103, (4) 340 - 345,   1995年04月
  • 粉体を利用したFGMsの作製
    森永健次, 武部博倫, 粉体に関する討論会講演論文集, 33rd,   1995年
  • ホウ酸塩ガラスの高屈折率低分散性に及ぼす高原子価イオンの添加効果
    三戸 貴之, 藤野 茂, 武部 博倫, 森永 健次, 日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 102, (1192) 1163 - 1167,   1994年12月01日, Refractive indexes of barium borate based glasses were measured in the wavelength range from 0.265 to 1.710 μm by using the minimum deviation method. Factors affecting the refractive index dispersion are discussed by using the single oscillator Drude Voigt equation. Borate glasses are characterized by the larger number N of molecules in a unit volume than that for silicate glasses. The feature of borate glasses, that is, relative high refractive index and low dispersion, is dominated by the number N which is related to the fraction of four coordinated borons estimated by Green blatt and Bray. Borate glasses containing high valency cations, e.g., Y^<3+>, La^<3+>, Ti^<4+>, Nb^<5+>, Ta^<5+>, posess higher refractive indexes and higher dispersion than barium borate binary glasses.
  • ZrO_2Ni系複合材料の変形・破壊挙動に及ぼす温度の影響
    小川 哲男, 新川 和夫, 高橋 清, 武部 博倫, 森永 健次, 材料, 43, (494) 1463 - 1468,   1994年11月15日, Zirconia-nickel composite materials were fabricated by powder processing technique and pressureless sintering. A tensile testing machine with a scanning electron microscope was utilized to study the deformation and fracture behaviors of the materials. Tensile tests were performed on dumbbell type specimens in vacuum at temperatures up to 800℃. Stress-strain relationships were determined for the composites as functions of temperature and volume fraction of ZrO_2. The result showed that both the tensile strength and elongation to fracture decreased as the test temperature increased. It was also found that the strength increased with increasing volume fraction of ZrO_2 up to 50%. To understand such effects, the deformation and fracture behaviors were investigated from microscopic view points through in-situ observation of the specimen surface and the fracture surface examination.
  • Correlation between radiative transition probabilities of rare-earth ions and composition in oxide glasses
    Hiromichi Takebe, Kenji Morinaga, Tetsuro Izumitani, Journal of Non-Crystalline Solids, 178,   1994年11月03日, The compositional dependences of spontaneous emission probabilities of rare-earth ions such as Nd3+ and Er3+ were studied for silicate, phosphate and borate glasses using the Judd-Ofelt theory. The effect of the covalency of the rare-earth ion sites on the emission probabilities was estimated from the variations of the profiles of the absorption spectra in terms of the nephelauxetic effect. The spontaneous emission probabilities which depended on the intensity parameters, Ω4 and Ω6, were strongly affected by the ionic packing ratio of the glass host. © 1994.
  • ZrO2/Ni系複合材料の変形・破壊挙動に及ぼす温度の影響
    小川哲男, 新川和夫, 高橋清, 武部博倫, 森永健次, 材料, 43, (494) 1463 - 1468,   1994年11月
  • Heat of crystallization and microstructure of amorphous Pd82Si18 and Fe80B20 alloys
    Eiichi Asayama, Hisayuki Imamura, Hiromichi Takebe, Kenji Morinaga, Materials Transactions, JIM, 35,   1994年10月01日, For X-ray amorphous Pd82Si18 and Fe80B20 alloys prepared by a melt-spinning method with various wheel velocities, the relationship between the heat of crystallization and microstructure was studied using differential scanning calorimetry and optical and transmission electron microscopy. The result of TEM shows that the X-ray amorphous Pd82Si18 alloy has a uniform microstructure without crystals and the X-ray amorphous Fe80B20 alloy contains uniformly-dispersed α-Fe particles with nanometer sizes which are undetectable by the ordinary X-ray diffraction analysis. The Avrami exponent n for the crystallization of the X-ray amorphous alloys supports the microstructural features. The variations in the heat of crystallization with the cooling rate estimated from the ribbon thickness correspond to the volume fraction of crystalline phases for Pd82Si18 alloys and the particle size of α-Fe for Fe80B20 alloys. The heat of crystallization is proposed as a parameter expressing the degree of non-crystallinity for the alloys. The critical cooling rates for the formation of X-ray amorphous phases mean the minimum cooling rate to avoid the formation of crystals with a detectable 'volume fraction' for Pd82Si18 alloys and that with a detectable 'size' for Fe80B20 alloys.
  • アルカリ土類アルミノ珪酸塩ガラスの非平衡状態図
    吉原賢太郎, 武部博倫, 森永健次, 日本金属学会講演概要, 115th,   1994年10月
  • Refractive-index dispersion of tellurite glasses in the region from 0.40 to 1.71 μm
    Hiromichi Takebe, Shigeru Fujino, Kenji Morinaga, Journal of the American Ceramic Society, 77,   1994年09月01日, The refractive index of binary tellurite glasses with various modifiers was measured down to the fifth decimal place in the wavelength range of 0.40-1.71 μm using the minimum-deviation method. An empirical equation based on the single-oscillator Drude-Voigt dispersion equation, nd2 = A·Nfλ02+B, is obtained, where nd is the refractive index at 0.5876 μm, N is the number of molecules in a unit volume, f is the average oscillator strength, λ0 is the average resonance wavelength, and A and B are constants. The refractive index nd of tellurite glasses is substantially determined by the resonance wavelength at the ultraviolet region, which is affected by the main constituent, TeO2.
  • 特集 モデル化の実装置への応用 対称三層積層材の乾燥・収縮の簡単なモデル化
    大内山紀男, 石橋修, 木村邦夫, 武部博倫, 森永健次, ケミカルエンジニヤリング, 39, (9) 727 - 731,   1994年09月
  • Ce3+ドープフッ化物ガラスの紫外発光
    PING B, 泉谷徹郎, 武部博倫, 森永健次, 猿倉信彦, LIU Z, 瀬川勇三郎, 応用物理学会学術講演会講演予稿集, 55th,   1994年09月
  • Effect of network modifier on spontaneous emission probabilities of Er3+ in oxide glasses
    Hiromichi Takebe, Yoshikazu Nageno, Kenji Morinaga, Journal of the American Ceramic Society, 77,   1994年08月01日, Compositional dependence of spontaneous emission probabilities of Er3+ was studied for silicate, borate, and phosphate glasses using the Judd-Ofelt theory. Through all of the glass systems, spontaneous emission probabilities of the 4I13/2→4I15/2, 4I9/2→4IJ, and 4S3/2→4IJ (J = 9/2, 11/2, 13/2, 15/2) transitions increased with increased ionic packing ratio of the glass host, which varied markedly with the type of network modifier. The effect of Er-O covalency on the transition probabilities was discussed from the spectral profile of the 4I15/2→4S3/2 transition in terms of nephelauxetic effect.
  • Bi‐Pb‐Sr‐Ca‐Cu‐O系融体の凝固過程における超伝導相の生成
    熊懐克浩, 浅山英一, 武部博倫, 森永健次, 資源と素材, 110, (9) 701 - 705,   1994年08月
  • コ-ディエライトガラスの加熱過程における相変態
    浅山 英一, 武部 博倫, 森永 健次, 日本金属学会誌, 58, (7) p720 - 727,   1994年07月
  • ホウ酸塩ガラスの屈析率とその波長分散性
    三戸貴之, 武部博倫, 森永健次, 日本金属学会・日本鉄鋼協会九州支部合同学術講演会講演概要集, 84th,   1994年06月
  • AlN‐B2O3系における反応と相関係
    吉原賢太郎, 武部博倫, 森永健次, 日本金属学会・日本鉄鋼協会九州支部合同学術講演会講演概要集, 84th,   1994年06月
  • Reaction and phase relations in the AlN-B2O3 system
    Sumihiko Kurita, Zhao Qiang Zeng, Hiromichi Takebe, Kenji Morinaga, Materials Transactions, JIM, 35,   1994年04月01日, The reaction and phase changes of the AlN-B2O3 mixtures with 5-33.3 mol% B2O3 was studied at high temperatures up to 1800°C. Boron nitride (BN), Al2O3, 2Al2O3·B2O3, 9Al2O3·2B2O3, and aluminum oxynitride spinel (AlON) are formed during the reactions. Phases of product formed at 1800°C are BN, AlON, Al2O3, and AlN. The effect of the formation mechanism of AlON on the growth of BN grains is discussed. The phase relation diagram is proposed based on the reaction results.
  • Effect of modifier ions on fluorescence and absorption of Eu3+ in alkali and alkaline earth silicate glasses
    Y. Nageno, H. Takebe, K. Morinaga, T. Izumitani, Journal of Non-Crystalline Solids, 169,   1994年01月01日, Fluorescence and absorption spectra of Eu3+ in silicate glasses have been measured. The fluorescence intensity ratio of 5D0 → 7F2 to 5D0 → 7F1 transitions of Eu3+ increases with increasing ionic radius in the order of Li < Na < K for binary alkali silicate glasses and with decreasing ionic radius in the order of Ba < Sr < Ca for binary alkaline earth silicate glasses. It was found for the first time that the intensity ratio exhibited a maximum with the addition of alkaline earth oxides in alkali alkaline earth silicate glasses. The variation of intensity ratio and the Judd-Ofelt parameter, Ω2, with composition depended on the structural change in the vicinity of Eu3+ ions and EuO covalency. © 1994.
  • Correlation between radiative transition probabilities of Nd3+ and composition in silicate, borate, phosphate glasses
    Yoshikazu Nageno, Hiromichi Takebe, Kenji Morinaga, Journal of the American Ceramic Society, 76,   1993年12月01日, Compositional dependence of spontaneous emission probabilities between initial 4F3/2 and terminal 4IJ (J = 9/2, 11/2, 13/2, 15/2) levels of Nd3+ were studied for about 90 samples of silicate, borate, and phosphate glasses using the Judd-Ofelt theory. The effect of the covalency of the Nd-O bond on the magnitude of intensity parameters was estimated from the variation of spectral profiles of the 4I9/2→4G5/2, 2G7/2 and 4F7/2, 4S3/2 transitions. Intensity parameters Ω4 and Ω6 and the spontaneous emission probabilities were strongly affected by the ionic packing ratio of the glass host. The results were discussed in terms of the site selectivity of Nd3+ ions in glasses.
  • Novel continuous measuring system tundish by using h-BN-AlN composites
    Sumihiko Kurita, Masazumi Nakashima, Hiromichi Takebe, Kenji Morinaga, First International Conference on Processing Materials for Properties,   1993年12月01日, A BN-AlN composite was fabricated by pressureless-sintering using turbostatic-BN and AlN powders as starting materials. The crystalline phases of a composite sintered at 1800°C were hexagonal-BN, γAlON, and AlN. The composite has excellent corrosion resistance against molten steel. The temperature of molten SUS-304 steel was measured continuously using a thermocouple protected by a BN-AlN composite cap.
  • ZrO2/Ni系複合材料の破壊に及ぼす温度の影響
    小川哲男, 新川和夫, 高橋清, 武部博倫, 森永健次, 破壊力学シンポジウム講演論文集, 7th,   1993年09月
  • Ti3+含有酸化物ガラスの吸光特性
    武部博倫, 森永健次, 日本化学会講演予稿集, 66th,   1993年09月
  • Si3N4焼結体の酸化挙動に及ぼす焼結助剤の影響
    栗田澄彦, 大末卓也, 武部博倫, 森永健次, 九州大学大学院総合理工学研究科報告, 15, (2) 173 - 179,   1993年09月
  • AlN‐B2O3系における反応と相平衡
    曽照強, 武部博倫, 栗田澄彦, 森永健次, 日本金属学会講演概要, 112th,   1993年03月
  • 対称三層積層材の乾燥・収縮割れに関する簡単なモデル解析
    大内山紀男, 木村邦夫, 石橋修, 武部博倫, 森永健次, 化学工学会年会研究発表講演要旨集, 58th,   1993年03月
  • CaO・Al2O3・2SiO2組成の融液の結晶化
    武部博倫, 浅山英一, 高島毅, 森永健次, 日本金属学会講演概要, 112th,   1993年03月
  • Critical cooling rates for the formation of glass for silicate melts
    Eiichi Asayama, Hiromichi Takebe, Kenji Morinaga, ISIJ International, 33,   1993年01月01日, The critical cooling rate required for the formation of glass is one of the important characteristics for silicate slag. The critical cooling rates have been measured for R 2O (R = Li, Na and K)-SiO 2 and R′O (R′ = Ca, Sr and Ba)-SiO 2 systems by the combined use of the hot-thermocouple method and an ordinary melt-quenching method. In all systems, the minima in critical cooling rate corresponded with the composition range of low liquidus temperatures near the eutectics; the critical cooling rates decreased with increasing viscosities at the liquidus temperatures. The measured critical cooling rates were similar to those predicted by the Uhlmann equation and Ota equation. Some factors affecting the critical cooling rate were discussed.
  • スリップキャスト法による貝殻模倣セラミックス
    森永 健次, 武部 博倫, セラミックス, 28, (1) 49 - 52,   1993年01月01日
  • 特集 生体の持つ無機質材料創生機能と生体模倣材料 スリップキャスト法による貝殻模倣セラミックス
    森永健次, 武部博倫, セラミックス, 28, (1) 49 - 52,   1993年01月
  • 連続鋳造ブレークリング用BN複合材の特性
    武部博倫, 中島真澄, 栗田澄彦, 森永健次, 資源・素材, 1993, (I) 17 - 18,   1993年
  • 高分解能2結晶型蛍光X線装置による酸化物薄膜の構造解析
    升田裕久, 武部博倫, 森永健次, X線分析討論会講演要旨集, 29th,   1993年
  • Nd3+イオン含有酸化物ガラスのふく射遷移確率の組成依存性
    投野義和, 藤野茂, 武部博倫, 森永健次, ガラスおよびフォトニクス材料討論会講演要旨集, 33rd,   1992年10月
  • スリップキャスト法によるセラミックス試験片の作製
    小川哲男, 新川和夫, 高橋清, 武部博倫, 森永健次, 九州大学応用力学研究所所報, (74) 267 - 271,   1992年10月
  • コーディエライトガラスの加熱過程における相変態
    浅山英一, 武部博倫, 森永健次, 日本金属学会講演概要, 111th,   1992年09月
  • 高分解能二結晶型蛍光X線装置による酸化物薄膜の構造解析
    甲斐輝彦, 武部博倫, 森永健次, セラミックス基礎科学討論会講演要旨集, 30th,   1992年01月
  • 酸化物系ガラス融体とアルミナ基板の界面反応
    西村浩二, 武部博倫, 森永健次, セラミックス基礎科学討論会講演要旨集, 30th,   1992年01月
  • Sputtering of silicate glasses
    Teruhiko Kai, Hiromichi Takebe, Kenji Morinaga, Proceedings of SPIE - The International Society for Optical Engineering, 1519,   1991年12月01日, Each of the amorphous films that consists of SiO2, Al2O3, CaO-SiO2, or CaO-Al2O3 system was prepared by rf-sputtering. Changes of film thickness, structure, composition, and transmittance in the visible region depending on the sputtering time were discussed. Especially, the chemical shifts of SiKα and AlKα were measured for study of structure and composition of the films by using a high resolution x-ray fluorescence spectrometer with double crystals.
  • 酸化物系ガラスの熱膨張率の化学組成依存性
    松尾 健司, 投野 義和, 武部 博倫, 森永 健次, Engineering sciences reports, Kyushu University, 13, (3) 271 - 278,   1991年12月01日, For the thermal expansion coefficient of oxide glasses, the parameter has been established on the basis of the mean bonding strength calcu1ated from coulomb forces between cation and oxygen ion. The relationship between the values of thermal expansion coefficient measured by previous workers and the parameter was examined for silicate, borate, borosilicate, aluminosilicate, and boroaluminate glasses. The linear relationship existed in the glasses consisted mainly of the network of silicate anions. The validity of the parameter was discussed from a structural point of view of the glasses.
  • 酸化物系ガラスの熱膨張率の化学組成依存性
    松尾健司, 投野義和, 武部博倫, 森永健次, 九州大学大学院総合理工学研究科報告, 13, (3) 271 - 278,   1991年12月
  • Eu3+イオンをドープしたSiO2系ガラスの構造と光学特性
    投野義和, 武部博倫, 森永健次, ガラスおよびフォトニクス材料討論会講演要旨集, 32nd,   1991年11月
  • コロイドプロセシングによる傾斜機能材料の開発
    武部博倫, 森永健次, 資源・素材, 1991, (U) 1 - 4,   1991年10月
  • 酸化物系ガラスのスパッタリングによる膜生成
    甲斐輝彦, 武部博倫, 森永健次, 資源・素材, 1991, (N) 45 - 48,   1991年10月
  • アンモニウムアルミニウム炭酸塩(AACH)から生成するアルミナの相転移過程
    林 浩一, 豊田 誠司, 武部 博倫, 森永 健次, 日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 99, (1151) 550 - 555,   1991年07月01日, The thermal decomposition and the phase transformations of ammonium aluminum carbonate hydroxide (AACH) to α-alumina have been studied. Amorphous-, γ- and θ-alumina were identified as intermediate products. A TTT diagram for the process of the thermal decomposition and the phase transformations was determined. Kinetic analysis of the θ- to α-aluminas transformation by the Avrarni-Erofeev equation showed that the transformation occurred by the nucleation and growth mechanism. Results of transmission electron Microscopy (TEM), however, suggested that the transformation occurred by the synchro-shear mechanism. The maximum particle size of θ-alumina and the minimum particle size of α-alumina were approximately 30 and 40 nm, respectively. A model of the transformation was presented from the viewpoint of crystallography.
  • アンモニウムアルミニウム炭酸塩(AACH)から生成するアルミナの相転移過程
    林浩一, 豊田誠司, 武部博倫, 森永健次, 日本セラミックス協会学術論文誌, 99, (7) 550 - 555,   1991年07月
  • アルミナ基板と銅の接着に及ぼす雰囲気と銅中の酸素の影響
    新藤直人, 武部博倫, 森永健次, 日本セラミックス協会年会講演予稿集, 1991,   1991年05月
  • アモルファスセレンの構造に及ぼす熱処理の影響
    浅山英一, 武部博倫, 森永健次, 日本金属学会講演概要, 108th,   1991年03月
  • Sputtering of silicate glasses
    Shinya Miyazaki, Teruhiko Kai, Hiromichi Takebe, Kenji Morinaga, Vacuum, 42,   1991年01月01日, Silicon dioxide and silicate glass films were prepared by rf-sputtering. Changes in thickness, composition, and structure of the films with sputtering time were investigated. High resolution X-ray fluorescence spectrometry and infrared spectroscopy were used to characterize the state of silicate anion in the films. We propose the sputtering mechanism of the silicate glasses.
  • Fabrication of YSZ tubes consisted of dense and porous layers for solid oxide fuel cell by the slip casting
    Hiromichi Takebe, Kenji Morinaga, Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan, 98,   1990年12月01日, The process of fabricating yttria-stabilized zirconia (YSZ) tubes consisted of dense and porous layers for solid oxide fuel cell by the slip casting has been discussed. Two types of YSZ powders having different agglomerate particle sizes were used. The size of dispersed YSZ particles was controlled by changing the milling time of YSZ slips. YSZ green bodies consisted of two layers were formed by the slip casting. During the drying process in an ambient atmosphere, no delamination of layers developed for similar permeabilites of dense and porous layers. The sintered YSZ material having dense and porous layers with ralative densities of 96 and 70%, respectively, was obtained by firing at 1300°C for 100 min. Because of a similarity of the densification rates of each layer in the early stage of sintering, cracks or defects were not observed in the sintered body. A YSZ tube consisted of dense and porous layers for SOFC was fabricated. The dense layer of electrolyte was 50 μm.
  • スリップキャスト法によるアルミナ層で表面処理したY-TZP厚膜の作製
    武部 博倫, 森永 健次, 日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 98, (1143) 1250 - 1254,   1990年11月01日, A fabrication process of multilayer thick film was discussed. The film, consists of three-layered structure, was stacked with protective layers of Al_2O_3 against vapor attack on both sides of Y-TZP layer. Slip casting method was used to form a multilayer green body. The thickness of each layer in the green body was controlled on the basis of casting data which was calculated for Al_2O_3 and Y-TZP slips. To avoid fracture during in an ambient atmosphere, it was important to minimize differences in permeability and pore size between Al_2O_3 and Y-TZP layers. No cracking was observed in a multilayer-sintered body, when a densification rate of each layer in the early stage of sintering was equal. The dense multilayer thick film was obtained by firing at 1600℃ for 2 h.
  • スリップキャスト法によるアルミナ層で表面処理したY‐TZP厚膜の作製
    武部博倫, 森永健次, 日本セラミックス協会学術論文誌, 98, (11) 1250 - 1254,   1990年11月
  • スリップキャスト法による緻密及び多孔質層からなる固体電解質型燃料電池用YSZ管の作製
    武部 博倫, 森永 健次, 日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 98, (1142) 1088 - 1092,   1990年10月01日, The process of fabricating yttria-stabilized zirconia (YSZ) tubes consisted of dense and porous layers for solid oxide fuel cell by the slip casting has been discussed. Two types of YSZ powders having different agglomerate particle sizes were used. The size of dispersed YSZ particles was controlled by changing the milling time of YSZ slips. YSZ green bodies consisted of two layers were formed by the slip casting. During the drying process in an ambient atmosphere, no delamination of layers developed for similar permeabilites of dense and porous layers. The sintered YSZ material having dense and porous layers with ralative densities of 96 and 70%, respectively, was obtained by firing at 1300℃ for 100 min. Because of a similarity of the densification rates of each layer in the early stage of sintering, cracks or defects were not observed in the sintered body. A YSZ tube consisted of dense and porous layers for SOFC was fabricated. The dense layer of electrolyte was 50 μm.
  • スリップキャスト法によるち密及び多孔質層からなる固体電解質型燃料電池用YSZ管の作製
    武部博倫, 森永健次, 日本セラミックス協会学術論文誌, 98, (10) 1088 - 1092,   1990年10月
  • スリップキャスト法による特殊構造セラミックスの作製
    武部博倫, 森永健次, 日本金属学会講演概要, 107th,   1990年09月
  • 押出し成形による多結晶サファイア厚膜の作製
    吉田正知, 林浩一, 武部博倫, 森永健次, 日本セラミックス協会年会講演予稿集, 1990,   1990年05月
  • スリップキャスト法によるNi―TZP傾斜機能材料の作製
    武部博倫, 吉原直樹, 森永健次, 日本セラミックス協会年会講演予稿集, 1990,   1990年05月
  • アルミナ及びイットリア安定化ジルコニア(YSZ)のストリップキャスト
    武部 博倫, 吉原 直樹, 森永 健次, Engineering sciences reports, Kyushu University, 11, (4) 369 - 377,   1990年03月01日, In order to get the dense sintered bodies of alumina (Al2O3) and yttria-stabilized zirconia (YSZ) by a slip casting, the conditions to make a well-dispersed and high concentrated suspension have been studied in terms of theζ-potential and pH of suspensions and variety and content of deflocculant. Theζ-potential, which was capable to be measured only in dilute suspensions, was not representative parameter for the properties of high concentrated suspension. The other three parameter had influence on the viscosity and height of sedimentation of the concentrated suspensions, which were the important properties of slip in the slip casting process. Under the optimized condition of these properties controlled by these three parameters, we have obtained the dense sintered bodies of Al2O3 and YSZ with the relative density up to 99%.
  • アルミナ及びイットリア安定化ジルコニア(YSZ)のスリップキャスト
    武部博倫, 吉原直樹, 森永健次, 九州大学大学院総合理工学研究科報告, 11, (4) 369 - 377,   1990年03月
  • スリップキャスト法による固体電解質型燃料電池用イットリア安定化ジルコニア(YSZ)膜の製法
    武部 博倫, 吉原 直樹, 森永 健次, 日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 98, (1134) 136 - 143,   1990年02月01日, To fabricate the yttria-stablized zirconia (YSZ) films for solid oxide fuel cell by the slip casting, viscosity of YSZ slips and sintering property of green bodies have been investigated. Chlorine in as-received YSZ powders was removed as Cl^-ion by repetitive laundering of admixing distilled water. The sintering property of as-received YSZ powders was superior to that of laundered ones, because YSZ particles were condensed in the laundering process. Both as-received and laundered YSZ particles were stabilized in the slip with a deflocculant containing NH_4^+ salt of polyacrylic acid as a major component. For some slips the square of thickness of casting layer, L^2, was proportional to the casting time, t. Casting rate constant, L^2/t , was increased with increasing concentration of YSZ powders in the slips. The thickness of casting layer for fabricating YSZ films could be controlled by the casting data of YSZ slips. The relative densities of sintered YSZ specimens were 92 and 96% at sintering temperatures of 1300℃ and 1500℃, respectively. Dense YSZ films were fabricated by slip cast, and sintered without pressure at 1 500℃. The I-V characteristics of the flat thick film type solid oxide fuel cell based on the YSZ electrolyte film of 140μm thick, La_<0.6>Sr_<0.4>MnO_3 cathode and NiO + YSZ anode was excellent, and the power of this cell was about 450 m W/cm^2.
  • スリップキャスト法による固体電解質型燃料電池用イットリア安定化ジルコニア(YSZ)膜の製法
    武部博倫, 吉原直樹, 森永健次, 日本セラミックス協会学術論文誌, 98, (2) 136 - 143,   1990年02月
  • Processing of YSZ films for solid oxide fuel cell by the slip casting
    Hiromichi Takebe, Naoki Yoshihara, Kenji Morinaga, Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan, 98,   1990年01月01日, To fabricate yttria-stablized zirconia (YSZ) films for solid oxide fuel cells by slip casting, viscosity of YSZ slips and the sintering property of green bodies have been investigated. Chlorine in as-received YSZ powders was removed as Cl- ion by laundering of admixing distilled water. The sintering property of as-received YSZ powders was superior to that of laundered ones because YSZ particles were condensed in the laundering process. Both as-received and laundered YSZ particles were stabilized in the slip with a deflocculant containing NH4+ salt of polyacrylic acid as a major component. For some slips the square of thickness of the casting layer, L2, was proportional to the casting time, t. The thickness could be controlled by the casting data of YSZ slips. The relative densities of sintered YSZ specimens were 92 and 96% at sintering temperatures of 1300° and 1500°C, respectively. Dense YSZ films were fabricated and sintered without pressure at 1500°C. The I-V characteristics of the flat thick film type solid oxide fuel cell based on the YSZ electrolyte film of 140 μm thick, La0.6Sr0.4MnO3 cathode and NiO+YSZ anode was excellent. The power of this cell was about 450 m W/cm2.
  • Fabrication of translucent sintered aluminum oxynitride spinel (AlON)
    Hiromichi Takebe, Tsuneji Kameda, Michiyasu Komatsu, Katsutoshi Komeya, Kenji Morinaga, Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan, 97,   1989年12月01日, The single-phase region of AlON, a spinel type solid solution in the system Al2O3-AlN, has been determined. AlON was synthesized from solid phase reactions between Al2O3 and AlN powder in several reaction vessels. The single-phase region of AlON was from 28 to 32 mol% AlN at 1700°C and from 20 to 34 mol% AlN at 1800°C. The lattice parameters increased from 7.926 to 7.946 Angstrom with increasing AlN content. Y2O3 powder was used as a sintering aid to obtain translucent AlON from synthesized AlON powder at low temperature. For 1 wt% Y2O3 addition, translucent AlON was obtained at 1800°C, and its relative density and flexural strength were 99% and 250 MPa, respectively.
  • フェロニッケルスラグの冷却条件と組織に関する研究 アルカリ骨材反応防止のための冷却条件
    松尾泰明, 武部博倫, 太田能生, 森永健次, 資源と素材, 105, (14) 1067 - 1071,   1989年12月
  • コーディエライト系セラミックスの相変態
    武部博倫, 松尾泰明, 森永健次, 日本金属学会講演概要, 105th,   1989年09月
  • スリップキャスティング法による燃料電池用ZrO2膜の作製
    武部博倫, 吉原直樹, 森永健次, 日本セラミックス協会年会講演予稿集, 1989,   1989年05月
  • スリップキャストによるZrO2膜の製法
    吉原直樹, 武部博倫, 森永健次, 資源・素材学会研究・業績発表講演会講演要旨集, 1989,   1989年03月
  • 透光性酸窒化アルミニウムスピネル(AlON)焼結体の作製
    武部 博倫, 亀田 常治, 小松 通泰, 米屋 勝利, 森永 健次, 日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 97, (1122) 166 - 173,   1989年02月01日, The single-phase region of AION, a spinel type solid solution in the system Al_2O_3-AlN, has been determined. AION was synthesized from solid phase reactions between Al_2O_3 and AIN powder in several reaction vessels. The reaction vessel of porous Al_2O_3 with AIN coating was suitable for obtaining pure AION. The single-phase region of AION was from 28 to 32 mol% AIN at 1700℃ and from 20 to 34 mol% AIN at 1800℃. The lattice parameters of AION increased from 7.926 to 7.946A^^゜ with increasing AIN content. Y_2O_3-powder was used as a sintering aid to obtain translucent AION from synthesized AION powder at low temperature. For 1 wt% Y_2O_3 addition, the translucent AION was obtained at 1800℃, and its relative density and flexural strength were 99% and 250 MPa, respectively.
  • 透光性酸窒化アルミニウムスピネル(AlON)焼結体の作製
    武部博倫, 亀田常治, 小松通泰, 米屋勝利, 森永健次, 日本セラミックス協会学術論文誌, 97, (2) 166 - 173,   1989年02月
  • Fabrication of mechanical properties of lamellar Al2O3 ceramics
    Hiromichi Takebe, Kenji Morinaga, Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan, 96,   1988年12月01日, Lamellar Al2O3 ceramics were fabricated by the slip casting method, using two types of Al2O3 powders having different particle sizes and densification behavior between each other. The lamellar ceramics have the structure of alternating dense and porous layers with respective thickness λD and λp, ranging from 60 to 500 μm, and the volume fraction of the dense layers, VD, from 0 to 100%. The lamellar structures were controlled by changing the casting time and using the centrifugal force for draining the Al2O3 slurries during green forming. Fracture strengths of the lamellar ceramics were measured by three-point bending. Some of the lamellar ceramics showed higher flexural strength than monolithic, dense Al2O3 (approximately 335 MPa). The maximum strength, approximately 400 MPa, was obtained for the lamellar ceramic with VD=89±3%, λD=500 μm, λp=60 μm. The high strength is discussed from the view point of the crack deflection in the porous layers.
  • 積層型Al_2O_3セラミックスの作製及びその機械的性質
    武部 博倫, 森永 健次, 日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi, 96, (1120) 1149 - 1156,   1988年12月01日, Lamellar Al_2O_3 ceramics were fabricated by the slip casting method, using two types of Al_2O_3 powders having different particle sizes and densification behavior between each other. The lamellar ceramics have the structure of alternating dense and porous layers with respective thickness, λ_p and λ_p, ranging from 60 to 500 μm, and the volume fraction of the dense layers. V_D, from O to 100%. The lamellar structures were controlled by changing the casting time and using the centrifugal force for draining the Al_2O_3 slurries during green forming. Fracture strengths of the lamellar ceramics were measured by three-point bending. Some of the lamellar ceramics showed higher flexural strength than monolithic, dense Al_2O_3 (〜335 MPa) . The maximum strength, 〜400 MPa, was obtained for the lamellar ceramic with V_D=89±3%, λ_p=500 μm, λ_p= 60 μm. The high strength is discussed from the view point of the crack deflection in the porous layers,
  • 積層型Al2O3セラミックスの作製及びその機械的性質
    武部博倫, 森永健次, 日本セラミックス協会学術論文誌, 96, (12) 1149 - 1156,   1988年12月
  • 多層化セラミックスの製法および応用
    武部博倫, 森永健次, 資源・素材, 1988, (D) 1 - 4,   1988年10月

講演・口頭発表等

  • 銅スラグのヒ素及び鉛の溶出性に及ぼす相と微細構造の影響
    武部博倫,富田さゆり,岡田明子, 資源・素材学会 平成28年度 春季大会,   2016年03月30日, 招待有り
  • 最大泡圧法によるCaO–Al2O3–Fe2O3–SiO2系スラグ融体の表面張力測定
    岡田明子,上田康,武部博倫, 資源・素材学会 平成28年度 春季大会,   2016年03月29日
  • BaO–FeO–Fe2O3–P2O5ガラスの耐水性に及ぼす水との反応層の効果
    北村直登,阪本辰顕,武部博倫, 資源・素材学会 平成28年度 春季大会,   2016年03月28日
  • 鉄リン酸塩ガラスの特性と構造に及ぼすZrO2の添加効果
    野村輝, 北村直登, 斎藤全, 阪本辰顕, 武部博倫, 小林秀和, 天本一平, 中村洋貴, 三田村直樹, 都築達也, 第54回セラミックス基礎科学討論会,   2016年01月07日
  • 良耐水性・低光弾性亜鉛スズリン酸塩ガラスの特性と構造
    橋田優人,斎藤全,武部博倫 , 第54回セラミックス基礎科学討論会,   2016年01月07日
  • 最大泡圧法によるCaO-Al2O3-SiO2系合成スラグ融体の表面張力測定
    岡田明子,上田康,武部博倫, 資源・素材学会 関西支部主催 第12回若手研究者・学生のための研究発表会,   2015年12月11日
  • 銅スラグにおける冷却速度と微細構造の関係
    富田さゆり,岡田明子,武部博倫, 資源・素材学会 関西支部主催 第12回若手研究者・学生のための研究発表会,   2015年12月11日
  • Ge-Sb-Sガラスの作製及び特性評価
    三木城二,武部博倫, 第22回ヤングセラミストミーティング in中四国,   2015年11月21日
  • マグネシアークロム質耐火物と銅スラグ融体の界面反応
    島田岳,武部博倫, 第22回ヤングセラミストミーティング in中四国,   2015年11月21日
  • Role of reaction layer for water durability of BaO–FeO–Fe2O3–P2O5 glasses
    N. Kitamura, A. Saitoh, R. K. Brow, H. Takebe, 第56回ガラスおよびフォトニクス材料討論会,   2015年11月12日
  • The Effect of P2O5 addition on rare earth recovery from soda lime silicate glass cullet
    H. Arma, A. Saitoh, H. Takebe, 第56回ガラスおよびフォトニクス材料討論会,   2015年11月12日
  • Density Measurements of Alkaline Earth Silicate Slag Melts Containing Al2O3 and/or FeOx Using Archimedean Double-bob Method
    Arman, A. Okada, H. Takebe, 第56回ガラスおよびフォトニクス材料討論会,   2015年11月12日
  • 小さい光弾性定数を有するRO‐SnO‐P2O5(R=Zn,Ba,Sr)ガラスの物性
    板谷雅之, 斎藤全, 武部博倫, 第56回ガラスおよびフォトニクス材料討論会,   2015年11月12日
  • Interfacial reaction between magnesia-chrome refractory and iron silicate slag melt
    H. Takebe, G. Shimada, T. Fukui , UNITECR (Unified International Technical Conference on Refractories) 2015,   2015年09月17日
  • 銅スラグの重金属溶出性に及ぼす結晶化の影響
    富田さゆり,武部博倫,斎藤全,岡田明子,河原正泰, 資源・素材2015(松山)平成27年度資源・素材関係学協会合同秋季大会,   2015年09月08日
  • 次世代再処理ガラス固化技術基盤研究(15)鉄リン酸ガラスによる高レベル廃液固化に係る基礎検討
    小林秀和, 捧賢一, 天本一平, 天本一平, 北村直登, 武部博倫, 中村洋貴, 三田村直樹, 都築達也, 日本原子力学会秋の大会予稿集(CD-ROM),   2015年08月21日
  • BaO–FeO–Fe2O3–P2O5ガラスの水への浸出挙動
    北村直登,武部博倫, 金属第55回・鉄鋼第58回中四国支部講演大会,   2015年08月19日
  • Effect of transition metal impurities on phase and microstructure during the oxidation roasting of ZnS powder
    H. Takebe, S. Okano, T. Okura, EMC (European Metallurgical Conference) 2015/PbZn2015,   2015年06月16日
  • Compositional dependence of alkali resistance in CaO-Al2O3-SiO2 (CAS) glasses
    H. Takebe, S. Takahashi, Glass & Optical Materials Division and Deutsche Glastechnische Gesellschaft Joint Annual Meeting 2015,   2015年05月20日
  • Optical fiber fabrication of zero photoelastic ZnO–SnO–P2O5–B2O3 glasses
    A. Saitoh, Y. Oba, G. Tricot, H. Takebe, Glass & Optical Materials Division and Deutsche Glastechnische Gesellschaft Joint Annual Meeting 2015,   2015年05月20日
  • BaO‐FeOx‐P2O5ガラスの特性温度と耐水性
    北村直登, 斎藤全, 武部博倫, 天本一平, 小林秀和, 都築達也, 三田村直樹, 日本セラミックス協会年会講演予稿集(CD-ROM),   2015年03月06日
  • CaO‐Al2O3‐SiO2ガラスの耐アルカリ性に及ぼすAl2O3の添加効果
    高橋尚志, 武部博倫, セラミックス基礎科学討論会講演要旨集,   2015年01月08日
  • BaO‐FeOx‐P2O5ガラスの水への溶出挙動
    北村直登, 斎藤全, 武部博倫, 天本一平, 小林秀和, 都築達也, 三田村直樹, セラミックス基礎科学討論会講演要旨集,   2015年01月08日
  • BaO‐FeO‐Fe2O3‐P2O5ガラスの水への浸出挙動
    北村直登, 武部博倫, 日本鉄鋼協会中国四国支部・日本金属学会中国四国支部講演大会講演概要集,   2015年
  • ゼロ光弾性ZnO‐SnO‐P2O5‐B2O3ガラスを用いた光ファイバ試作
    大場裕也, 斎藤全, 武部博倫, ガラスおよびフォトニクス材料討論会講演要旨集,   2014年11月13日
  • CaO‐FeOx‐SiO2系ガラスにおけるFeの存在状態及びガラス構造
    岡田明子, 武部博倫, ガラスおよびフォトニクス材料討論会講演要旨集,   2014年11月13日
  • CaO‐Al2O3‐SiO2ガラスの構造と熱的特性及び密度との相関性
    武部博倫, 高橋尚志, NEUVILLE Daniel R., ガラスおよびフォトニクス材料討論会講演要旨集,   2014年11月13日
  • 耐水性を有するZnO‐SnO‐P2O5‐B2O3ガラスの光弾性特性と構造
    斎藤全, 中田晃平, TRICOT Gregory, 武部博倫, ガラスおよびフォトニクス材料討論会講演要旨集,   2014年11月13日
  • 汚染水処理廃棄物の廃棄体化に向けたガラス固化適用性検討―(8)鉄リン酸塩ガラス固化体作製にかかる熱力学的考察
    天本一平, 小林秀和, 北村直登, 武部博倫, 三田村直樹, 都築達也, 日本原子力学会秋の大会予稿集(CD-ROM),   2014年08月22日
  • 汚染水処理廃棄物の廃棄体化に向けたガラス固化適用性検討(7)鉄リン酸塩ガラス媒体による模擬スラッジの固化試験
    小林秀和, 天本一平, 北村直登, 武部博倫, 三田村直樹, 都築達也, 日本原子力学会秋の大会予稿集(CD-ROM),   2014年08月22日
  • 鉄リン酸塩ガラス媒体に関する熱力学的考察
    天本一平, 小林秀和, 山下照雄, 永井崇之, 北村直登, 武部博倫, 三田村直樹, 都築達也, 深山大元, 長野祐一, JANTZEN Tatjana, HACK Klaus, 日本原子力学会春の年会予稿集(CD-ROM),   2014年03月10日
  • マグネシア‐クロム質耐火物とスラグ融体の界面反応
    福井智也, 武部博倫, セラミックス基礎科学討論会講演要旨集,   2014年01月09日
  • ZnO‐SnO‐P2O5ガラスの結晶化挙動
    阿南翔嗣, 斎藤全, 武部博倫, セラミックス基礎科学討論会講演要旨集,   2014年01月09日
  • CaO‐Al2O3‐SiO2ガラスの密度と熱的特性及び構造の関連性
    高橋尚志, NEUVILLE D. R., 武部博倫, 日本鉄鋼協会中国四国支部・日本金属学会中国四国支部講演大会講演概要集,   2014年
  • Behaviour of IPG waste forms bearing BaSO4 as the dominant sludge constituent generated from the treatment of water used for cooling the stricken power reactors
    Ippei Amamoto, Hidekazu Kobayashi, Takuma Yokozawa, Teruo Yamashita, Takayuki Nagai, Naoto Kitamura, Hiromichi Takebe, Naoki Mitamura, Tatsuya Tsuzuki, Proceedings of the International Conference on Radioactive Waste Management and Environmental Remediation, ICEM,   2013年12月01日, The great amount of water used for cooling the stricken power reactors at Fukushima Dai-ichi following the earthquake and tsunami of 11 March 2011 has resulted in accumulation of cooling water so-called the remaining water in some buildings. As the cooling water is subsequently contaminated by fission products (FPs) and some other radioactive substances, it is necessary to decontaminate this 'cooling water' to reduce the volume of liquid radioactive waste and to reuse it again for cooling the affected reactors. Some methods are applied to remove the radioactive substances from the cooling water. However, after treatments of water, there arises a secondary radioactive waste, the sludge. Steps are now taken to immobilize this sludge. In this paper, BaSO4, as one of main constituents of the sludge, was chosen as an immobilizing target substance. The appropriate manufacturing condition of glass waste form for loading the sludge (BaSO4) was studied and the chemical durability was evaluated by measuring the dissolution rate. For this experiment, the iron phosphate glass (IPG), which is known to possess a large loading capacity for a variety of chemical substances, was employed as the glass medium. Based on experimental results, it is evident that BaSO4 can be loaded into the IPG medium when it possesses the appropriate composition and melting temperature. During loading, BaSO4 converted into BaO, acting as a network modifier, which leads to enhanced stability of IPG. Copyright © 2013 by ASME.
  • Applicability of iron phosphate glass medium for loading NaCl originated from seawater used for cooling the stricken power reactors
    Hidekazu Kobayashi, Ippei Amamoto, Takuma Yokozawa, Teruo Yamashita, Takayuki Nagai, Naoto Kitamura, Hiromichi Takebe, Naoki Mitamura, Tatsuya Tsuzuki, Proceedings of the International Conference on Radioactive Waste Management and Environmental Remediation, ICEM,   2013年12月01日, As the part of investigation for immobilization of the sludge as one of the radioactive wastes arising from the treatment of contaminated water at Fukushima Dai-ichi nuclear power plant, applicability of vitrification method has been evaluated as a candidate technique. The aim of this study is to evaluate the influence of NaCl as one of the main constituents of sludge, on glass formation and glass properties. Two kinds of iron phosphate glass (IPG) media in the xFe2O3-(100-x)P2O5, with x=30 and 35 (mol%) were chosen and the glass formation, structure and properties including density, coefficient of thermal expansion, glass transition temperature, onset crystallization temperature and chemical durability of NaCl-loaded IPG were studied. The results are summarized as follows. Sodium chloride, NaCl could be loaded into IPG medium as Na2O and Cl contents and their loading ratio could be up to 19 and 15 mol%, respectively. Majority of Cl content of raw material NaCl was thought to be volatilized during glass melting. Loading NaCl into IPG induces to depolymerize glass network of phosphate chains, leads to decrease both glass transition and onset crystallization temperatures, and to increase coefficient of thermal expansion. NaCl-loaded IPG indicated good chemical durability in case of using 35Fe 2O3- 65P2O5 medium. Copyright © 2013 by ASME.
  • SnO‐P2O5‐B2O3ガラスの特性と構造に対するB2O3濃度の影響
    斎藤全, 阿南翔嗣, TRICOT Gregory, 武部博倫, ガラスおよびフォトニクス材料討論会講演要旨集,   2013年11月21日
  • 汚染水処理廃棄物の廃棄体化に向けたガラス固化適用性検討(6)鉄リン酸塩ガラス媒体によるフェロシアン化物成分の固化処理に関する基礎試験
    小林秀和, 天本一平, 横澤拓磨, 山下照雄, 永井崇之, 北村直登, 武部博倫, 三田村直樹, 都築達也, 日本原子力学会秋の大会予稿集(CD-ROM),   2013年08月20日
  • 汚染水処理廃棄物の廃棄体化に向けたガラス固化適用性検討(4)鉄リン酸塩ガラス媒体によるBaSO4固化処理に係る基礎試験
    天本一平, 小林秀和, 横澤拓磨, 山下照雄, 永井崇之, 北村直登, 武部博倫, 三田村直樹, 都築達也, 日本原子力学会春の年会予稿集(CD-ROM),   2013年03月11日
  • 汚染水処理廃棄物の廃棄体化に向けたガラス固化適用性検討(5)鉄リン酸塩ガラス媒体によるNaCl固化処理に係る基礎試験
    小林秀和, 天本一平, 横澤拓磨, 山下照雄, 永井崇之, 北村直登, 武部博倫, 三田村直樹, 都築達也, 日本原子力学会春の年会予稿集(CD-ROM),   2013年03月11日, 福島第一原子力発電所において実施している汚染水の処理に伴い、さまざまな成分から成るスラッジが発生している。ここでは、スラッジ構成物質の内、主にNaClのガラス固化への影響を確認するとともに、作製した模擬廃棄物ガラスの物性測定を行った。
  • マグネシウム‐クロム質耐火物の微細組織とスラグ融体との界面反応
    武部博倫, 福井智也, 森安諒, 資源・素材,   2013年
  • 鉄リン酸塩ガラスの特性と構造に及ぼすCs2SO4の添加効果
    北村直登, 武部博倫, 天本一平, 小林秀和, 都築達也, 三田村直樹, 日本鉄鋼協会中国四国支部・日本金属学会中国四国支部講演大会講演概要集,   2013年
  • マグネシア‐クロム質耐火物とスラグ融体の界面反応
    福井智也, 武部博倫, 日本鉄鋼協会中国四国支部・日本金属学会中国四国支部講演大会講演概要集,   2013年
  • 低光弾性ZnO‐SnO‐P2O5系ガラスの作製と熱的特性
    斎藤全, 大場裕也, 阿南翔嗣, 武部博倫, 資源・素材,   2013年
  • 真球気泡差圧法による界面活性剤水溶液の表面張力測定
    森安諒, 武部博倫, 余仲達, 向井楠宏, 資源・素材,   2013年
  • リン酸塩ガラスの耐水性に及ぼす組成の影響
    武部博倫, 斎藤全, ガラスおよびフォトニクス材料討論会講演要旨集,   2012年10月25日
  • ZnO‐SnO‐P2O5ガラスの低光弾性特性
    斎藤全, 阿南翔嗣, 武部博倫, ガラスおよびフォトニクス材料討論会講演要旨集,   2012年10月25日
  • CaO‐Al2O3‐SiO2ガラスの熱的特性と構造に及ぼすAl2O3の添加効果
    高橋尚志, 武部博倫, ガラスおよびフォトニクス材料討論会講演要旨集,   2012年10月25日
  • リンケイ酸塩系模擬スラグにおけるレアアース濃縮のための組成条件
    中村洋貴, 武部博倫, 資源・素材,   2012年09月11日
  • 汚染水処理廃棄物の廃棄体化に向けたガラス固化適用性検討(2)スラッジ固化の概要と固化媒体の選定
    天本一平, 小林秀和, 横澤拓磨, 山下照雄, 永井崇之, 鈴木良和, 武部博倫, 三田村直樹, 都築達也, 日本原子力学会秋の大会予稿集(CD-ROM),   2012年09月03日, 被災した原子炉で使用された冷却水は汚染しているため,放射性廃棄物発生容量を低減化する観点から汚染水の除染が行われている。本研究において,汚染水の処理で発生する沈殿物(スラッジ)の成分を推定し,これを廃棄体化するのに適したガラス媒体を検討したところ鉄リン酸塩ガラスが有効であることが判明した。
  • 汚染水処理廃棄物の廃棄体化に向けたガラス固化適用性検討(3)スラッジのガラス固化に係る予備試験
    小林秀和, 天本一平, 横澤拓磨, 山下照雄, 永井崇之, 中村洋貴, 武部博倫, 三田村直樹, 都築達也, 日本原子力学会秋の大会予稿集(CD-ROM),   2012年09月03日, 汚染水処理で発生するスラッジの主成分と考えられるBaSO4の固化ガラス媒体として、鉄リン酸塩系ガラスを用いた予備試験を行い、ガラス固化が可能な組成範囲や充填率、作製した模擬廃棄体の物性等を明らかにした。
  • SnO‐P2O5ガラスの耐水性に及ぼすB2O3の添加効果
    小畠卓也, 斎藤全, 武部博倫, 日本セラミックス協会年会講演予稿集,   2012年03月19日
  • 硫化亜鉛精鉱の酸化反応に関する基礎的研究(第4報)
    岡野聡, 武部博倫, 大藏隆彦, 資源・素材,   2012年
  • ホットサーモカップル法によるスラグ及びマットの溶融挙動の評価
    福井智也, 上田康, 武部博倫, 資源・素材学会春季大会講演集,   2012年
  • 酸化物スラグ融体と白金の界面反応
    森安諒, 斎藤全, 武部博倫, 資源・素材学会春季大会講演集,   2012年
  • 酸化物スラグ融体の高温粘度測定
    中川皓介, 上田康, 武部博倫, 資源・素材学会春季大会講演集,   2012年
  • カルシウムアルミノケイ酸塩スラグ融体の粘度特性
    徳永亮太, 中川皓介, 武部博倫, 日本鉄鋼協会中国四国支部・日本金属学会中国四国支部講演大会講演概要集,   2012年
  • カルシウムアルミノケイ酸塩スラグ固化体の熱的特性の組成依存性
    高橋尚志, 武部博倫, 日本鉄鋼協会中国四国支部・日本金属学会中国四国支部講演大会講演概要集,   2012年
  • 硫化亜鉛精鉱の酸化反応に関する基礎的研究(第3報)
    岡野聡, 武部博倫, 大藏隆彦, 資源・素材学会春季大会講演集,   2012年
  • レアアース回収のための溶融スラグの組成設計
    中村洋貴, 武部博倫, 資源・素材,   2011年09月26日
  • BaO‐P2O5ガラスの耐水性に及ぼすB2O3とAl2O3の添加効果
    上村知世, 武部博倫, 資源・素材,   2011年09月26日
  • 硫化亜鉛精鉱の酸化反応に関する基礎的研究(第2報)
    岡野聡, 武部博倫, 大藏隆彦, 資源・素材,   2011年09月26日
  • 非鉄製錬スラグの組成設計―溶融挙動,融体物性,有価金属溶解性―
    武部博倫, 山口勉功, 資源・素材,   2011年09月26日
  • チタンへの真珠層被覆処理とin vitro生体活性評価
    洗川隼人, 小林千悟, 仲井清眞, 武部博倫, 青野宏通, 岡野聡, 阪本辰顕, 日本金属学会講演概要,   2011年04月20日
  • BaO‐P2O5ガラスの耐水性に及ぼすB2O3とAl2O3の添加効果
    上村知世, 武部博倫, 資源・素材学会春季大会講演集,   2011年
  • 硫化亜鉛精鉱の酸化反応に関する基礎的研究(第1報)
    岡野聡, 武部博倫, 大藏隆彦, 資源・素材学会春季大会講演集,   2011年
  • CaO‐Al2O3‐SiO2ガラスの熱的特性
    高橋尚志, 武部博倫, 資源・素材学会春季大会講演集,   2010年03月30日
  • 酸化物ガラスの光弾性定数の評価
    山本直樹, 武部博倫, 応用物理学関係連合講演会講演予稿集(CD-ROM),   2010年03月03日
  • 石炭ガス化発電スラグの溶融挙動の検討
    上田康, 寺井久貴, 大前雄介, 武部博倫, 資源・素材,   2010年
  • BaO‐P2O5‐Al2O3ガラスの熱的特性と構造
    鈴木良和, 武部博倫, 日本鉄鋼協会中国四国支部・日本金属学会中国四国支部講演大会講演概要集,   2010年
  • SnO‐P2O5ガラスの光弾性定数に及ぼすZnO添加効果
    山本直樹, 武部博倫, 日本鉄鋼協会中国四国支部・日本金属学会中国四国支部講演大会講演概要集,   2010年
  • 熱インプリント法によるガラスへのパターニングに及ぼす成形条件の影響
    武部博倫, 橋本直也, 高田俊一, 桑原誠, 日本金属学会講演概要,   2009年03月28日
  • 低温軟化性リン酸塩ガラスの作製と熱インプリント成形
    武部博倫, 橋本直也, 高田俊一, 桑原誠, 資源・素材学会春季大会講演集,   2009年03月26日
  • BaO‐P2O5‐Al2O3ガラスの特性
    武部博倫, 藤田健太, 大前雄介, 冨田雄二朗, 桑原誠, 日本セラミックス協会年会講演予稿集,   2009年03月16日
  • BaO‐P2O5‐B2O3ガラスの特性と構造
    武部博倫, 愛媛大学工学部工学ジャーナル(CD-ROM),   2009年03月
  • リン酸塩ガラスの耐水性の組成依存性
    武部博倫, 大前雄介, 資源・素材,   2009年
  • Mn2+添加リン酸塩ガラスの発光特性
    河野瑞代, 桑原誠, 武部博倫, 日本セラミックス協会秋季シンポジウム講演予稿集,   2008年09月17日

特許

  • SHG素子用シリカガラスおよびその製造方法, 森永 健次, 武部 博倫, 竹内 哲彦, 鍬崎 尚哉, 河野 充, 特願平8-090736, 特開平9-281534, 特許第3924803号
  • 低光弾性ガラスおよびこれを用いた光ファイバ, 武部 博倫, 斎藤 全, 山本 直樹, 黒澤 潔, 近藤 礼志, 特願2012-031994, 特開2013-166675
  • 放射性廃棄物のガラス固化体及びその形成方法, 都築 達也, 三田村 直樹, 天本 一平, 小林 秀和, 横澤 拓磨, 武部 博倫, 特願2013-253737, 特開2014-142336
  • ガラス、ガラス粉末、光ファイバー、光ファイバーアレイ及び光導波路, 井芹 陽一, 西原 茂生, 武部 博倫, 西元 修司, 原田 尚志, 特願2005-237740, 特開2007-051030
  • カルコゲナイドガラス, 武部 博倫, 北川 良太, 特願2004-263863, 特開2006-076845
  • ガラス組成物、混合体、ペースト、グリーンシートおよびPDP, 黒光 祥郎, 植杉 隆二, 菅村 邦夫, 豊田 誠司, 藤野 茂, 武部 博倫, 特願2004-173142, 特開2005-022962
  • ガラス組成物、混合体、ペースト、グリーンシートおよびPDP, 黒光 祥郎, 植杉 隆二, 菅村 邦夫, 豊田 誠司, 藤野 茂, 武部 博倫, 特願2004-171778, 特開2005-022961
  • 電極活物質およびその製造方法ならびに非水電解質二次電池, 岡田 重人, 山木 準一, 岡崎 泰憲, 武部 博倫, 特願2004-084822, 特開2005-158673
  • バリアリブとその製造方法、PDP, 黒光 祥郎, 植杉 隆二, 菅村 邦夫, 豊田 誠司, 藤野 茂, 武部 博倫, 特願2004-072758, 特開2005-026208
  • PDPバリアリブ用セラミック粉末、PDPバリアリブの製造方法, 黒光 祥郎, 植杉 隆二, 菅村 邦夫, 豊田 誠司, 武部 博倫, 特願2004-072759, 特開2005-022955
  • カルコゲナイド焼成体およびその製造方法, 武部 博倫, 平川 敏弘, 特願2003-082320, 特開2004-284923, 特願2003-082320
  • 非晶質薄膜への凹凸部形成方法及び非晶質薄膜, 武部 博倫, 森永 健次, 特願2002-276373, 特開2004-114046, 特願2002-276373
  • 結晶性硫化物薄膜及びその製造方法, 武部 博倫, 森永 健次, 特願2002-242735, 特開2004-083933, 特願2002-242735
  • ガラス及びこれを用いた光ファイバ, 因 浩之, 武部 博倫, 森永 健次, 特願2002-049667, 特開2003-246642
  • 光化学ホールバーニング材料, 武部 博倫, 森永 健次, 特願2001-401835, 特開2003-202640, 特願2001-401835
  • ガラス及びその製造方法, 因 浩之, 武部 博倫, 森永 健次, 特願2001-145917, 特開2002-338294
  • SHG素子用シリカガラスおよびその製造方法, 森永 健次, 武部 博倫, 竹内 哲彦, 鍬崎 尚哉, 河野 充, 特願平8-090736, 特開平9-281534

受賞

  •   1996年, 資源・素材学会奨励賞

競争的資金

社会貢献活動情報

社会貢献活動

  • 製錬銅スラグ 有害物質 封じ込め再生, 情報提供, 日刊工業新聞社,   2016年06月16日


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