2001 Fiscal Year Annual Research Report

凝縮プラズマ系下の金属-超軽元素化合物生成機構の基礎的解明

Research Project

Project/Area Number	12450293
Research Institution	KYOTO UNIVERSITY
Principal Investigator	冨井洋一京都大学, エネルギー科学研究科, 助教授 (90026245)
Co-Investigator(Kenkyū-buntansha)	雨澤浩史京都大学, 人間・環境学研究科, 助手 (90263136) 桑原秀行 (財)応用科学研究所第一研究室, 室長 (90132795) 高田潤岡山大学, 工学部, 教授 (60093259) 野平俊之京都大学, エネルギー科学研究科, 助手 (00303876) 後藤琢也京都大学, エネルギー科学研究科, 助手 (60296754)
Keywords	凝縮プラズマ系反応 / 非平衡物質 / Al-Ti-C複合炭化物 / 金属融体-CH_4反応 / 厚膜 / 超微細粒子 / 熱安定性 / 環境安定性
Research Abstract	咋年度に引き続き、以下に示す予定の2小研究項目を遂行し、以下の成果を得た。 1.凝縮プラズマ系反応による、非平衡物質の創製と高機能性およびマイクロキャラクタリゼーション前年度のTi-N系での成果を踏まえて、Al-Ti-C系の物質創製が試みられた。 Al-Ti-C系は、AlTiやAl_3Ti等の化合物を高温の液体下では容易に生成するが、これらの化合物の分離・成長が著しく、マトリックスの強化にはほとんど効果が認められなかった。しかしながら、このようなAl-Ti系に、CH_4を添加したプラズマガスを高温(【similar or equal】1400℃)の融体下で作用させると、表面に特異な厚膜が生成した。この厚膜は、厚さが【similar or equal】mmに及び、その硬度はmHv【similar or equal】500に達することが測定され、XRD及びEPMAの分析によって、Al-Ti-Cの複合化合物の超微細粒子の分散による可能性の高いことが示唆された。 2.凝縮プラズマ生成非平衡物質の熱力学的安定性この以上に硬度値の高い厚膜の安定性が、熱的及び腐食環境下で調べられた。その結果、耐食性に著しい向上が認められ、9000〜1000℃の高温下でも安定であった。Al-C系では空気中の水分によっても容易に分解されるが、この厚膜は水中でも何ら腐食することなく安定であった。この原因は、Al-C系にTiをプラズマ反応によって非平衡的に含ませることによるものと解析された。以上のような実験的進展と成果の蓄積に伴い、プラズマ材料創製から実用化に向けた今後の課題として以下の点が指摘された。 (1)Al-Ti-C系厚膜部の微細構造の透過形電子顕微鏡による解明 (2)Al-Ti-C系厚膜組成のマトリックスアルミニウムヘの分散法の確立これらの2点の実験的解明と確立については、今後も引き続き行われる。

Research Products
(49 results)

All Other

All Publications (49 results)

[Publications] M.Iwase: "Measurements of Ferrous Oxide Activities to Reduce Steelmaking Slag Volume"High Temperature Materials and Processes. 20. 269-277 (2001)
[Publications] H.Yamamoto: "Fluoride Uptake in Human Teeth from Fluoride-Releasing Restorative Material in vivo and in vitro: Two-Dimensional Mapping by EPMA-WDX"Caries Research. 35. 111-115 (2001)
[Publications] M.Iwase: "Thermodynamic Strategy For Reduction of Steelmaking Slag Volume and Fluorspar Consumption"Trends in Metals and Materials Engineering. 14. 60-67 (2001)
[Publications] K.Amezawa: "Protonic conduction and defect structures in Sr-doped LaPO_4"Solid State Ionics. 145. 233-240 (2001)
[Publications] H.Yamamoto: "Fluoride Uptake Around Cavity Walls : Two Dimensional Mapping by Electron Probe Microanalysis"Operative Dentistry. 25. 104-112 (2000)
[Publications] M.Tamaki: "The role of hydrogen in plasma nitriding: Hydrogen behavior in the titanium nitride layer"Plasmas and Ions. 3. 33-40 (2000)
[Publications] K.Amezawa: "Thermodynamic Properties and Single-Electrode Peltier Heats of a Li-A1 Alloy in a LiCl-KCl Eutectic Melt"J.Electrochem.Soc.. 146. 1069-1074 (1999)
[Publications] M.Tamaki: "An Investigation of Titanium Nitride Prepared by a DC Arc Plasma Jet"Journal of Materials Synthesis and Processing. 6. 215-219 (1999)
[Publications] Y.Fukunaka: "Electrochemical Interfacial Phenomena under Microgravity: Part I. Anodic Dissolution of Copper in Drop Shaft"Metallurgical and Materials Transactions B. 30. 99-106 (1999)
[Publications] J.Kondoh: "Aging and Composition Dependence of Electron Diffraction Patterns in Yttria-Stabilized Zirconia : Relationship between Crystal Structure and Conductivity"Physica B. 262. 177-189 (1999)
[Publications] M.Tamaki: "SIMS Analysisys of Titanium Nitride Layer Prepaired by Plasma Nitriding"49th Annual meeting of International society of Electrochemistry. 863-866 (1999)
[Publications] M.Nagae: "Surface Modification of Molybdenum Alloys by Nitriding"Advances in Powder metallugy and Particulate Meterials. 11-109-116 (1999)
[Publications] M.Nagae: "Microstructure of a Molybdenum Nitride Layer Formed by Nitriding Molybdenum Metal"J.Am.Ceram.Soc.. 84. 1175-1177 (2001)
[Publications] 高田潤: "多段優先窒化処理による再結晶組織制御と高靱性・高強度Mo合金の研究開発"まてりあ. 40. 666-667 (2001)
[Publications] 長江正寛: "内部窒化により組織制御したMo合金の機械的性質"日本金属学会誌. 64. 751-754 (2000)
[Publications] 長江正寛: "多段内部窒化による希薄Mo-Ti合金の再結晶制御"日本金属学会誌. 64. 747-750 (2000)
[Publications] 桑原秀行: "Fe-Cr合金のプラズマ窒化による表面構造化(第2報)-Fe-13Cr合金のプラズマ窒化-"第52回塑性加工連合講演会. 191 (2001)
[Publications] 桑原秀行: "Fe-Cr合金のプラズマ窒化による表面構造化(第1報)-Fe-Crのプラズマ窒化プロセス-"第52回塑性加工連合講演会. 193 (2001)
[Publications] T.Luangvaranunt: "Gas Nitriding of Magnesium -Titanium Alloys Fabricated by Bulk Mechanical Alloying"Matericals Transactions. 42. 1312-1316 (2001)
[Publications] 桑原秀行: "プラズマ窒化によるFe-Cr合金の組織及び硬さ傾斜の制御"粉体及び粉末冶金. 48. 494-500 (2001)
[Publications] 桑原秀行: "窒化チタンセラミックバルク体の作製とその組織"マテリアルインテグレーション. 14. 39-44 (2001)
[Publications] 桑原秀行: "窒化クロムセラミックバルク体の焼結と性質"マテリアルインテグレーション. 14. 33-38 (2001)
[Publications] S.Kikuchi: "Fablication of Ag/Fe-Nitrides Super-Laminates Using Foil Metallurgy and Nitriding Process"Proceedings of 2000 Powder Metallugy World Congress. 1673-1676 (2000)
[Publications] H.Kuwahara: "Mechanical Properties of Bulk Sintered Chromium Nitride Ceramic"Proceedings of 2000 Powder Metallugy World Congress. 1289-1292 (2000)
[Publications] P.Visuttipitukul: "Plasma Nitriding of Aluminium Powder Compact with Refined Microstructure via Bulk Mechanical Alloying"Proceedings of 2000 Powder Metallugy World Congress. 1104-1107 (2000)
[Publications] T.Watanabe: "Nondestructive Evaluation by Acoustic Spectro Microscopy-For Modeling Micro-Stgructures and Properties by Using a Dual Phase Stainless Steel"Proceedings of 2000 Powder Metallugy World Congress. 494-500 (2000)
[Publications] 桑原秀行: "Fe-Cr鋼の縞状組織"第5回超鉄鋼ワークショップ. 272-273 (2000)
[Publications] 桑原秀行: "市販SCM材の窒化によるγ層の出現"第5回超鉄鋼ワークショップ. 270-271 (2000)
[Publications] 金作整: "混合リチウム-アルカリ水溶液を反応場としたリチウムマンガンスピネルの水熱合成と評価"粉体及び粉末冶金. 48. 830-835 (2001)
[Publications] T.Kanasaku: "Hydrothermal synthesis and electrochemical properties of Li-Mn-Spinel"Solid State Ionics. 133. 51-56 (2000)
[Publications] T.Kanasaku: "A Novel Synthetic Route of A_xCoO_2 (A=Li or Na) through the Ion-Exchange Reaction of CoOOH by the Hydrothermal Method"Mol.Cryst. and Liq.Cryst.. 341. 171-176 (2000)
[Publications] T.Goto: "Formation of III-V nitrides by molten salt electrochemical process"Proceeding of 6th International Synposium on Molten Salt Chemistry and Technology. 126-129 (2001)
[Publications] H.Tsujiimura: "Electrochemical formation of chromium nitride films in a molten LiCl-KCl-Li_3N System"Annual Report of Quantum Science and Engineering Center. 3. 93-96 (2001)
[Publications] T.Goto: "Electrochemical formation of AIN in a molten LiCl-KCl-Li_3N System"Annual Report of Quantum Science and Engineering Center. 3. 89-92 (2001)
[Publications] T.Goto: "Formation of U-Fe alloy films by molten salt electrochemical process"Annual Report of Quantum Science and Engineering Center. 3. 67-70 (2001)
[Publications] T.Goto: "Electrochemical formation of iron nitride film in a molten LiCl-Kcl-Li_3N system"Electrochemical Acta. 45. 3367-3373 (2000)
[Publications] T.Nishikiori: "Effect of Absorted Hydrogen on Surface Nitriding by Molten Salt Eleltrochemical Process"Elecrochemical and Solid-State Letters. 3. 552-554 (2000)
[Publications] T.Goto: "Electrochemical behavior of uranium ion in molten LiCl-KCl"Annual Report of Quantum Science and Engineering Center. 2. 88-90 (2000)
[Publications] T.Goto: "Electrochemical Formation of metal nitride film in a molten LiCl-KCl-Li_3N system"Annual Report of Quantum Science and Engineering Center. 2. 79-82 (2000)
[Publications] T.Goto: "Thermodynamic and kinetic investigation of nitrogen gas electrode reation in molten LiCl-KC1"Annual Report of Quantum Science and Engineering Center. 2. 75-78 (2000)
[Publications] T.Nishikiori: "Acceration of Electrochemical Titanium Nitride Growth by Additiono of LiH in a Molten LiCl-KCl-Li_3N System"Elecrochemical and Solid-State Letters. 2. 278-280 (1999)
[Publications] T.Goto: "Formation of Nitride Thin Films by Electrochemical Implantation"Electrochemical Society Proceedings. 99-11. 651-659 (1999)
[Publications] T.Iida: "Electrochemical formation of Sm-Ni alloy films in a molten LiCl-KCl-SmCl_3 system"Electrochemica Acta. 46. 2357-2544 (2001)
[Publications] T.Tsuda: "Electrodeposition of lanthanum in lanthanum chloride saturated AlCl_3 -1-ethyl-3-methylimidazolium chloride"Electrochemica Acta. 46. 1891-1897 (2001)
[Publications] H.Konishi: "Formation and Phase Control of Dy Alloy Films by Electrochemical Implantation and Displantation"Journal of the Electrochemical Society. 148. C506-C511 (2001)
[Publications] T.Konishi: "Kinetic Investigation of the Ti-H System by a Molten Salt Electrochemical Technique"Journal of the Electrochemical Society. 148. E127-E132 (2001)
[Publications] T.Konishi: "Hydrogen Impermeability of TiN Films and Its Dependance on Nitrogen Concentration at High Temperature"Journal of the Electrochemical Society. 148. E52-E59 (2001)
[Publications] T.Konishi: "Thermdynamic Investigation of Ti-H System by Molten Salt Electrochemical Technique"Journal of the Electrochemical Society. 148. E38-E43 (2001)
[Publications] Y.Ito: "Non-conventional electrolytes for electrochemical applications"Electrochemica Acta. 45. 2611-2622 (2000)

2001 Fiscal Year Annual Research Report

凝縮プラズマ系下の金属-超軽元素化合物生成機構の基礎的解明

Principal Investigator

冨井 洋一 京都大学, エネルギー科学研究科, 助教授 (90026245)

Research Products

[Publications] M.Iwase: "Measurements of Ferrous Oxide Activities to Reduce Steelmaking Slag Volume"High Temperature Materials and Processes. 20. 269-277 (2001)

[Publications] H.Yamamoto: "Fluoride Uptake in Human Teeth from Fluoride-Releasing Restorative Material in vivo and in vitro: Two-Dimensional Mapping by EPMA-WDX"Caries Research. 35. 111-115 (2001)

[Publications] M.Iwase: "Thermodynamic Strategy For Reduction of Steelmaking Slag Volume and Fluorspar Consumption"Trends in Metals and Materials Engineering. 14. 60-67 (2001)

[Publications] K.Amezawa: "Protonic conduction and defect structures in Sr-doped LaPO_4"Solid State Ionics. 145. 233-240 (2001)

[Publications] H.Yamamoto: "Fluoride Uptake Around Cavity Walls : Two Dimensional Mapping by Electron Probe Microanalysis"Operative Dentistry. 25. 104-112 (2000)

[Publications] M.Tamaki: "The role of hydrogen in plasma nitriding: Hydrogen behavior in the titanium nitride layer"Plasmas and Ions. 3. 33-40 (2000)

[Publications] K.Amezawa: "Thermodynamic Properties and Single-Electrode Peltier Heats of a Li-A1 Alloy in a LiCl-KCl Eutectic Melt"J.Electrochem.Soc.. 146. 1069-1074 (1999)

[Publications] M.Tamaki: "An Investigation of Titanium Nitride Prepared by a DC Arc Plasma Jet"Journal of Materials Synthesis and Processing. 6. 215-219 (1999)

[Publications] Y.Fukunaka: "Electrochemical Interfacial Phenomena under Microgravity: Part I. Anodic Dissolution of Copper in Drop Shaft"Metallurgical and Materials Transactions B. 30. 99-106 (1999)

[Publications] J.Kondoh: "Aging and Composition Dependence of Electron Diffraction Patterns in Yttria-Stabilized Zirconia : Relationship between Crystal Structure and Conductivity"Physica B. 262. 177-189 (1999)

[Publications] M.Tamaki: "SIMS Analysisys of Titanium Nitride Layer Prepaired by Plasma Nitriding"49th Annual meeting of International society of Electrochemistry. 863-866 (1999)

[Publications] M.Nagae: "Surface Modification of Molybdenum Alloys by Nitriding"Advances in Powder metallugy and Particulate Meterials. 11-109-116 (1999)

[Publications] M.Nagae: "Microstructure of a Molybdenum Nitride Layer Formed by Nitriding Molybdenum Metal"J.Am.Ceram.Soc.. 84. 1175-1177 (2001)

[Publications] 高田潤: "多段優先窒化処理による再結晶組織制御と高靱性・高強度Mo合金の研究開発"まてりあ. 40. 666-667 (2001)

[Publications] 長江正寛: "内部窒化により組織制御したMo合金の機械的性質"日本金属学会誌. 64. 751-754 (2000)

[Publications] 長江正寛: "多段内部窒化による希薄Mo-Ti合金の再結晶制御"日本金属学会誌. 64. 747-750 (2000)

[Publications] 桑原秀行: "Fe-Cr合金のプラズマ窒化による表面構造化(第2報)-Fe-13Cr合金のプラズマ窒化-"第52回塑性加工連合講演会. 191 (2001)

[Publications] 桑原秀行: "Fe-Cr合金のプラズマ窒化による表面構造化(第1報)-Fe-Crのプラズマ窒化プロセス-"第52回塑性加工連合講演会. 193 (2001)

[Publications] T.Luangvaranunt: "Gas Nitriding of Magnesium -Titanium Alloys Fabricated by Bulk Mechanical Alloying"Matericals Transactions. 42. 1312-1316 (2001)

[Publications] 桑原秀行: "プラズマ窒化によるFe-Cr合金の組織及び硬さ傾斜の制御"粉体及び粉末冶金. 48. 494-500 (2001)

[Publications] 桑原秀行: "窒化チタンセラミックバルク体の作製とその組織"マテリアルインテグレーション. 14. 39-44 (2001)

[Publications] 桑原秀行: "窒化クロムセラミックバルク体の焼結と性質"マテリアルインテグレーション. 14. 33-38 (2001)

[Publications] S.Kikuchi: "Fablication of Ag/Fe-Nitrides Super-Laminates Using Foil Metallurgy and Nitriding Process"Proceedings of 2000 Powder Metallugy World Congress. 1673-1676 (2000)

[Publications] H.Kuwahara: "Mechanical Properties of Bulk Sintered Chromium Nitride Ceramic"Proceedings of 2000 Powder Metallugy World Congress. 1289-1292 (2000)

[Publications] P.Visuttipitukul: "Plasma Nitriding of Aluminium Powder Compact with Refined Microstructure via Bulk Mechanical Alloying"Proceedings of 2000 Powder Metallugy World Congress. 1104-1107 (2000)

[Publications] T.Watanabe: "Nondestructive Evaluation by Acoustic Spectro Microscopy-For Modeling Micro-Stgructures and Properties by Using a Dual Phase Stainless Steel"Proceedings of 2000 Powder Metallugy World Congress. 494-500 (2000)

[Publications] 桑原秀行: "Fe-Cr鋼の縞状組織"第5回超鉄鋼ワークショップ. 272-273 (2000)

[Publications] 桑原秀行: "市販SCM材の窒化によるγ層の出現"第5回超鉄鋼ワークショップ. 270-271 (2000)

[Publications] 金作整: "混合リチウム-アルカリ水溶液を反応場としたリチウムマンガンスピネルの水熱合成と評価"粉体及び粉末冶金. 48. 830-835 (2001)

[Publications] T.Kanasaku: "Hydrothermal synthesis and electrochemical properties of Li-Mn-Spinel"Solid State Ionics. 133. 51-56 (2000)

[Publications] T.Kanasaku: "A Novel Synthetic Route of A_xCoO_2 (A=Li or Na) through the Ion-Exchange Reaction of CoOOH by the Hydrothermal Method"Mol.Cryst. and Liq.Cryst.. 341. 171-176 (2000)

[Publications] T.Goto: "Formation of III-V nitrides by molten salt electrochemical process"Proceeding of 6th International Synposium on Molten Salt Chemistry and Technology. 126-129 (2001)

[Publications] H.Tsujiimura: "Electrochemical formation of chromium nitride films in a molten LiCl-KCl-Li_3N System"Annual Report of Quantum Science and Engineering Center. 3. 93-96 (2001)

[Publications] T.Goto: "Electrochemical formation of AIN in a molten LiCl-KCl-Li_3N System"Annual Report of Quantum Science and Engineering Center. 3. 89-92 (2001)

[Publications] T.Goto: "Formation of U-Fe alloy films by molten salt electrochemical process"Annual Report of Quantum Science and Engineering Center. 3. 67-70 (2001)

[Publications] T.Goto: "Electrochemical formation of iron nitride film in a molten LiCl-Kcl-Li_3N system"Electrochemical Acta. 45. 3367-3373 (2000)

[Publications] T.Nishikiori: "Effect of Absorted Hydrogen on Surface Nitriding by Molten Salt Eleltrochemical Process"Elecrochemical and Solid-State Letters. 3. 552-554 (2000)

[Publications] T.Goto: "Electrochemical behavior of uranium ion in molten LiCl-KCl"Annual Report of Quantum Science and Engineering Center. 2. 88-90 (2000)

[Publications] T.Goto: "Electrochemical Formation of metal nitride film in a molten LiCl-KCl-Li_3N system"Annual Report of Quantum Science and Engineering Center. 2. 79-82 (2000)

[Publications] T.Goto: "Thermodynamic and kinetic investigation of nitrogen gas electrode reation in molten LiCl-KC1"Annual Report of Quantum Science and Engineering Center. 2. 75-78 (2000)

[Publications] T.Nishikiori: "Acceration of Electrochemical Titanium Nitride Growth by Additiono of LiH in a Molten LiCl-KCl-Li_3N System"Elecrochemical and Solid-State Letters. 2. 278-280 (1999)

[Publications] T.Goto: "Formation of Nitride Thin Films by Electrochemical Implantation"Electrochemical Society Proceedings. 99-11. 651-659 (1999)

[Publications] T.Iida: "Electrochemical formation of Sm-Ni alloy films in a molten LiCl-KCl-SmCl_3 system"Electrochemica Acta. 46. 2357-2544 (2001)

[Publications] T.Tsuda: "Electrodeposition of lanthanum in lanthanum chloride saturated AlCl_3 -1-ethyl-3-methylimidazolium chloride"Electrochemica Acta. 46. 1891-1897 (2001)

[Publications] H.Konishi: "Formation and Phase Control of Dy Alloy Films by Electrochemical Implantation and Displantation"Journal of the Electrochemical Society. 148. C506-C511 (2001)

[Publications] T.Konishi: "Kinetic Investigation of the Ti-H System by a Molten Salt Electrochemical Technique"Journal of the Electrochemical Society. 148. E127-E132 (2001)

[Publications] T.Konishi: "Hydrogen Impermeability of TiN Films and Its Dependance on Nitrogen Concentration at High Temperature"Journal of the Electrochemical Society. 148. E52-E59 (2001)

[Publications] T.Konishi: "Thermdynamic Investigation of Ti-H System by Molten Salt Electrochemical Technique"Journal of the Electrochemical Society. 148. E38-E43 (2001)

[Publications] Y.Ito: "Non-conventional electrolytes for electrochemical applications"Electrochemica Acta. 45. 2611-2622 (2000)

冨井洋一京都大学, エネルギー科学研究科, 助教授 (90026245)