2000 Fiscal Year Annual Research Report

新しい無機材料の創製と機能制御

Research Project

Project/Area Number	11450331
Research Institution	Hokkaido University
Principal Investigator	嶋田志郎北海道大学, 大学院・工学研究科, 教授 (90002310)
Co-Investigator(Kenkyū-buntansha)	山中昭司広島大学, 工学部, 教授 (90081314) 近藤建一東京工業大学, 応用セラミックス研究所, 教授 (50111670) 小平絋平北海道大学, 大学院・工学研究科, 教授 (60002002) 高橋順一北海道大学, 大学院・工学研究科, 助教授 (40110259) 吉川信一北海道大学, 大学院・工学研究科, 教授 (10127219)
Keywords	窒化物 / 炭化物 / 高次構造 / ゾルーゲル法 / 微小重力 / MOCVD / 誘電体 / 薄膜
Research Abstract	固相・液相・気相反応によって新しい無機材料(窒化物、炭化物、酸化物、それら複合材料)を創製し、その機能発現と制御を次の3 固相反応による無機材料創製グループ:高温合成法、燃焼合成法、衝撃圧縮凍結法、放電プラズマ焼結法による固相反応プロセスを利用して、組成、界面構造や高次構造つのグループで行った。制御による機能制御を確立し、新しい高温構造材料、電子材料、超硬材料を合成した。液相反応による無機材料創製グループ:ゾルーゲル法、融液の徐冷および急冷法、水熱合成法、さらに、微小重力下での液相合成プロセスを利用して、大型の単結晶育成とアモルファス薄膜、光化学特性ガラスの作製、均一組成の金属塩の析出を行い、それらのサイズ、形状、形態、組織の制御を行った。この制御を通して新しい誘電特性、電池特性、ガスセンサー、TiO2による光触媒機能を見出した。気相反応による無機材料創製グループ:非平衡状態での合成法として注目されているMOCVD、自己組織化を狙った気相からの反応制御プロセスを駆使して、炭化物や誘電体超薄膜作製を行い、薄膜化による新機能の発現を試みた。この際、気相からの析出過程パラメータと膜の組成とミクロ構造、基板との界面構造との関係から最適なパラメータを求め、Ir-Cなどの機能性薄膜を作製した。以上の反応による材料合成に加えて、高分解能TEMによるナノ結晶の新しい評価法も確立した。

Research Products
(16 results)

All Other

All Publications (16 results)

[Publications] S.Shimada and M.Yoshimatsu: "Preparation of (Ti_<1-x>Al_x)N films from mixed alkoxide solutions by plasma CVD"Thin Solid Films. 370・. 146-150 (2000)
[Publications] H.Fukuoka, K.Iwai, S.Yamanaka, H.Abe, K.Yoza and L.Haming: "Preparation and structure of a new germanium clathrate,Ba_<24>Ge_<100>"Journal of Solid State Chemistry. 151・1. 117-121 (2000)
[Publications] R.L.Dong and Y.Hirata: "Processing of ceria-coated alumina fiber/alumina matrix composite"Journal of the Ceramic Society of Japan. 108・9. 823-829 (2000)
[Publications] T.Goto, J.R.Vargas and T.Hirai: "Effect of oxygen gas addition on preparation of iridium and platinum films by metal-organic chemical vapor deposition"Materials Transactions Jim. 40・3. 209-213 (1999)
[Publications] M.Higuchi, K.Kodaira and S.Nakayama: "Nonstoichiometry in apatite-type neodymium silicate single crystals"Journal of Crystal Growth. 216・1-4. 317-321 (2000)
[Publications] H.Hirai, M.Terauchi, M.Tanaka and K.Kondo: "Band gap of essentially fourfold-coordinated amorphous diamond synthesized from C-60 fullerene"Physical Review B. 40・3. 6357-6361 (1999)
[Publications] A.Maljuk, S.Watauchi, I.Tanaka and H.Kojima: "The effect of B_2O_3 addition on La_<2-x>Sr_xCuO_4 single-crystal growth"Journal of Crystal Growth. 212・1-2. 138-141 (2000)
[Publications] H.Matsuda, N.Kobayashi, T.Kobayashi, K.Miyazawa and M.Kuwabara: "Room-temperature synthesis of crystalline barium titanate thin films by high-concentration sol-gel method"Journal of Non-Crystalline Solids. 271・1-2. 162-166 (2000)
[Publications] J.M.C.Moreno, S.S.Swamy, T.Fujino and M.Yoshimura: "Carbon nanocells and nanotubes grown in hydrothermal fluids"Chemical Physics Letters. 329・3-4. 317-322 (2000)
[Publications] W.Sakamoto, K.Kosugi, T.Yogo and S.Hirano: "Chemical solution processing and characterization of La doped tungsten bronze K_<0.4> (Pb_<0.6>Ba_<0.4>) _<0.5> Nb_2O_6 thin films"Japanese Journal of Applied Physics Part 1. 38・9B. 5442-5447 (1999)
[Publications] K.Tadanaga, J.Morinaga, A.Matsuda and T.Minami: "Superhydrophobic-superhydrophilic micropatterning on flowerlike alumina coating film by the sol-gel method"Chemistry of Materials. 12・3. 590-592 (2000)
[Publications] J.Tatami, K.Komeya, T.Meguro, S.Iwasawa, R.Terao and M.Komatsu: "Fracture Behavior of Strengthened AlN"Electronic Ceramic Materials and Devices. 106・. 493-499 (2000)
[Publications] H.Uehara, T.Yamanobe and T.Komoto: "Relationship between solid-state molecular motion and morphology for ultrahigh molecular weight polyethylene crystallized under different conditions"Macromolecules. 33・13. 4861-4870 (2000)
[Publications] H.Yamane, H.Takahashi, T.Kajiwara and M.Shimada: "Na_2Ca_3Ta_2O_9 with a simple stacking of oxygen triangular nets"Acta Crystallographica-Section C. 55・Part 12. 1978-1980 (1999)
[Publications] J.Yang, Y.Takeda, N.Imanishi and O.Yamamoto: "Tin-containing anode materials in combination with Li_<2.6>Co_<0.4>N for irreversibility compensation"Journal of the Electrochemical Society. 147・5. 1671-1676 (2000)
[Publications] C.Yasumoto, Fujita.K and K.Hirao: "Photochemical Reaction od Samarium Ions within an Oxide Glass Irradiated with Near-Infrared Femtosecond Laser Pulses"J.Soc.Mat.Sci.. (in press).

2000 Fiscal Year Annual Research Report

新しい無機材料の創製と機能制御

Principal Investigator

嶋田 志郎 北海道大学, 大学院・工学研究科, 教授 (90002310)

Research Products

[Publications] S.Shimada and M.Yoshimatsu: "Preparation of (Ti_<1-x>Al_x)N films from mixed alkoxide solutions by plasma CVD"Thin Solid Films. 370・. 146-150 (2000)

[Publications] H.Fukuoka, K.Iwai, S.Yamanaka, H.Abe, K.Yoza and L.Haming: "Preparation and structure of a new germanium clathrate,Ba_<24>Ge_<100>"Journal of Solid State Chemistry. 151・1. 117-121 (2000)

[Publications] R.L.Dong and Y.Hirata: "Processing of ceria-coated alumina fiber/alumina matrix composite"Journal of the Ceramic Society of Japan. 108・9. 823-829 (2000)

[Publications] T.Goto, J.R.Vargas and T.Hirai: "Effect of oxygen gas addition on preparation of iridium and platinum films by metal-organic chemical vapor deposition"Materials Transactions Jim. 40・3. 209-213 (1999)

[Publications] M.Higuchi, K.Kodaira and S.Nakayama: "Nonstoichiometry in apatite-type neodymium silicate single crystals"Journal of Crystal Growth. 216・1-4. 317-321 (2000)

[Publications] H.Hirai, M.Terauchi, M.Tanaka and K.Kondo: "Band gap of essentially fourfold-coordinated amorphous diamond synthesized from C-60 fullerene"Physical Review B. 40・3. 6357-6361 (1999)

[Publications] A.Maljuk, S.Watauchi, I.Tanaka and H.Kojima: "The effect of B_2O_3 addition on La_<2-x>Sr_xCuO_4 single-crystal growth"Journal of Crystal Growth. 212・1-2. 138-141 (2000)

[Publications] H.Matsuda, N.Kobayashi, T.Kobayashi, K.Miyazawa and M.Kuwabara: "Room-temperature synthesis of crystalline barium titanate thin films by high-concentration sol-gel method"Journal of Non-Crystalline Solids. 271・1-2. 162-166 (2000)

[Publications] J.M.C.Moreno, S.S.Swamy, T.Fujino and M.Yoshimura: "Carbon nanocells and nanotubes grown in hydrothermal fluids"Chemical Physics Letters. 329・3-4. 317-322 (2000)

[Publications] W.Sakamoto, K.Kosugi, T.Yogo and S.Hirano: "Chemical solution processing and characterization of La doped tungsten bronze K_<0.4> (Pb_<0.6>Ba_<0.4>) _<0.5> Nb_2O_6 thin films"Japanese Journal of Applied Physics Part 1. 38・9B. 5442-5447 (1999)

[Publications] K.Tadanaga, J.Morinaga, A.Matsuda and T.Minami: "Superhydrophobic-superhydrophilic micropatterning on flowerlike alumina coating film by the sol-gel method"Chemistry of Materials. 12・3. 590-592 (2000)

[Publications] J.Tatami, K.Komeya, T.Meguro, S.Iwasawa, R.Terao and M.Komatsu: "Fracture Behavior of Strengthened AlN"Electronic Ceramic Materials and Devices. 106・. 493-499 (2000)

[Publications] H.Uehara, T.Yamanobe and T.Komoto: "Relationship between solid-state molecular motion and morphology for ultrahigh molecular weight polyethylene crystallized under different conditions"Macromolecules. 33・13. 4861-4870 (2000)

[Publications] H.Yamane, H.Takahashi, T.Kajiwara and M.Shimada: "Na_2Ca_3Ta_2O_9 with a simple stacking of oxygen triangular nets"Acta Crystallographica-Section C. 55・Part 12. 1978-1980 (1999)

[Publications] J.Yang, Y.Takeda, N.Imanishi and O.Yamamoto: "Tin-containing anode materials in combination with Li_<2.6>Co_<0.4>N for irreversibility compensation"Journal of the Electrochemical Society. 147・5. 1671-1676 (2000)

[Publications] C.Yasumoto, Fujita.K and K.Hirao: "Photochemical Reaction od Samarium Ions within an Oxide Glass Irradiated with Near-Infrared Femtosecond Laser Pulses"J.Soc.Mat.Sci.. (in press).

嶋田志郎北海道大学, 大学院・工学研究科, 教授 (90002310)