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Highly toughened composites by compressive surface layers with self-recovery function

Research Project

Project/Area Number 13450275
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Composite materials/Physical properties
Research InstitutionIbaraki University

Principal Investigator

ABE Osami  Ibaraki University, College of Engineering, Professor, 工学部, 教授 (40231948)

Co-Investigator(Kenkyū-buntansha) MOMOSE Yoshihiro  Ibaraki University, College of Engineering, Professor, 工学部, 教授 (10006314)
Project Period (FY) 2001 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥12,000,000 (Direct Cost: ¥12,000,000)
Fiscal Year 2003: ¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 2002: ¥5,100,000 (Direct Cost: ¥5,100,000)
Fiscal Year 2001: ¥4,700,000 (Direct Cost: ¥4,700,000)
KeywordsCompressive surface stress / Surface modification / Oxidation reaction / Self-recovery / Toughening / Strengthening / NiAl / α-Al_2O_3 / Tri-layer composites / 表面 / 自己組織化 / 自己再生 / 損傷許容性 / 強靭化 / 強靱化
Research Abstract

New toughening and strengthening mechanism due to the oxidation-derived compressive surface layers and the self-recovery function of the surface layers have been proposed and demonstrated. The volume expansion for the oxidation of dispersant NiAl forming NiAl_2O_4 with lower theoretical density provides the compressive surface stress. The preparation process of the starting NiAl/Al_2O_3 composites has initially been established, where (Ni, Al)-hydrazino-benzoate precursors precipitated in a water/methanol solution dispersing Al_2O_3 powder for the matrix are converted to fine and spherical NiAl particles covered by the Al_2O_3 powder at 1280℃ in Ar. This composite powder can be densified by a pressure-less sintering at 1600℃. The NiAl is oxidized to NiAl_2O_4 and NiO above 1200℃ in air. One of the oxidation products, NiO diffuses through the grain boundary of the matrix-alumina, reacts with the boundary Al_2O_3, and generates metamorphic layers consisting of boundary NiAl_2O_4 and AL_" … More O_3 grains inside the thin surface films. The thickness of the metamorphic layers is 20-50μm. The development of the surface film is particularly promoted at 1400℃, while it is limited below 1350℃. The development of the metamorphic layer with the compressive stress attaining to -128MPa has been controlled by the volume fraction of NiAl and the oxidation temperature. The strength and fracture toughness of the 10vol%NiAl/Al_2O_3 composite, 530MPa and 4 MPa・m^<1/2>, have been improved to 660MPa and 8 MPa・m^<1/2> by the oxidation. For the intelligent functions, the reproduction of the compressive surface layers without degradation of the strength and toughness has been verified. In addition, the rapid diffusion of the oxidation products filled the Vickers indents and cracks propagated from the indents to recover the strength by the oxidation treatment. These intelligent functions as well as the strengthening and toughening should contribute to the improvement of the reliability of the ceramic-matrix composites. Less

Report

(4 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • Research Products

    (57 results)

All Other

All Publications (57 results)

  • [Publications] O.ABE, S.TAKATA, Y.OHWA: "Toughening of NiAl-alumina Composites by S elf-constructed Compressive"Journal of European Ceramic Society. 24. 489-494 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] O.Abe, Y.Ohwa: "Oxidation of NiAl/Al_2O_3 Composites for Controlled Development of Surface Layers and Toughening"Solid State Ionics. (印刷中). (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] O.Abe, Y.Ohwa: "Possibility of Enhanced Strength and Self recovery of Surface Damages of Ceramics Composites under Oxidative Conditions"Journal of European Ceramic Society. (発表予定). (2004)

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      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] O.Abe, Y.Ohwa: "Oxidation-derived Trilayer Composites Showing Enhanced Strength and Toughness"Journal of the Ceramics Society of Japan. (発表予定). (2004)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 阿部修実, 大輪善孝: "酸化反応によって発生する表面残留圧縮応力を利用したアルミナ-NiAl複合材料の強靱化"第40回セラミックス基礎討論会. 82-83 (2002)

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      「研究成果報告書概要(和文)」より
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      2003 Final Research Report Summary
  • [Publications] 阿部修実: "表面残留圧縮応力を利用したセラミックス複合材料の強靱化"第17回日本セラミックス協会関東支部研究発表会. 66 (2001)

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      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 倉信洋一郎, 高田智司, 阿部修実: "化学沈殿法を利用したNi_3Al/α-Al_2O_3複合材料の作製"第19回日本セラミックス協会関東支部研究発表会. 65 (2003)

    • Description
      「研究成果報告書概要(和文)」より
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      2003 Final Research Report Summary
  • [Publications] 大輪善孝, 高田智司, 阿部修実: "酸化反応によって修飾したNiAl/α-Al_2O_3複合材料の機械的性質"第19回日本セラミックス協会関東支部研究発表会. 60 (2003)

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      「研究成果報告書概要(和文)」より
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      2003 Final Research Report Summary
  • [Publications] 大輪善孝, 高田智司, 阿部修実: "NiAl/アルミナ複合材料の強靱化に寄与する表面酸化層の状態"日本セラミックス協会2003年年会. 82 (2003)

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      「研究成果報告書概要(和文)」より
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      2003 Final Research Report Summary
  • [Publications] 滝崎勝敬, 阿部修実: "NiAl/α-Al_2O_3基複合材料の強靱化"機械学会茨城講演会. 57-58 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 大輪善孝, 高田智司, 阿部修実: "アルミナ/NiAl複合材料の表面自己組織化による強靱化"機械学会茨城講演会. 157-158 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 大輪善孝, 高田智司, 阿部修実: "NiAl/α-Al_2O_3複合材料の機械的性質に及ぼす酸化処理の影響"機械学会茨城講演会. 117-118 (2003)

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      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 倉信洋一郎, 高田智司, 阿部修実: "Ni_3Al/α-Al_2O_3複合材料の作製と諸特性"機械学会茨城講演会. 121-122 (2003)

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      2003 Final Research Report Summary
  • [Publications] S.Takata, Y.Ohwa, O.Abe: "Surface Modification of NiAl/Alumina Composites for Toughening"The 1^<st> Asian International Symposium on the Science of Engineering Ceramics. 19 (2002)

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    • Related Report
      2003 Final Research Report Summary
  • [Publications] O.Abe, Y.Kuranobu: "Fabrication of Ni3Al/α-Al_2O_3 Composites"The 2^<nd> Asian International Symposium on the Science of Engineering Ceramics. 46-47 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] O.Abe, Y.Ohwa: "Toughening of NiAl-Alumina Composites by Self-Constructed Compressive Surface Layers under Oxidation"The 8^<th> International Conference on Ceramics Processing Science. 52 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] O.Abe, S.Takata, Y.Ohwa: "Oxidation of NiAl/Al_2O_3 Composites for Controlled Development of Surface Layers and Toughening"The XV^<th> International Symposium on the Reactivity of Solids. 119 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] O.Abe, Y.Ohwa, Y.Kuranobu: "Possibility of Enhanced Strength and Self-recovery of Surface Damages of Ceramics Composites under Oxidative Conditions"International Symposium on Inorganic and Environmental Materials 2004. (発表予定). (2004)

    • Description
      「研究成果報告書概要(和文)」より
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      2003 Final Research Report Summary
  • [Publications] 阿部修実, 大輪善孝: "酸化反応により表面残留圧縮応力層を形成したアルミナ-NiAl系三層積層複合材料の構造と強靱化"茨城大学超塑性工学研究センター研究成果報告. 34-38 (2002)

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      「研究成果報告書概要(和文)」より
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      2003 Final Research Report Summary
  • [Publications] Y.Ohwa, O.Abe: "Toughening of NiAl-Alumina Composites by Self-Constructed Compressive Surface Layers"茨城大学超塑性工学研究センター研究成果報告. 52-54 (2003)

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      2003 Final Research Report Summary
  • [Publications] O.Abe, Y.Ohwa: "Preparation and Mechanical Properties of Oxidation-derived Tri-layer Composites from NiAl/α-Al_2O_3 Materials"茨城大学超塑性工学研究センター研究成果報告. 39-42 (2004)

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      「研究成果報告書概要(和文)」より
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      2003 Final Research Report Summary
  • [Publications] O.Abe, S.Tanaka, Y.Ohwa: "Toughening of NiAl-alumina Composites by Self-Constructed Compressive Surface Layers under Oxidation"Journal of European Ceramic Society. Vol.24. 489-494 (2004)

    • Description
      「研究成果報告書概要(欧文)」より
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      2003 Final Research Report Summary
  • [Publications] O.Abe, Y.Ohwa: "Oxidation of NiAl/Al_2O_3 Composites for Controlled Development of Surface Layers and Toughening"Solid State Ionics. (In Printing).

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      2003 Final Research Report Summary
  • [Publications] O.Abe, Y.Ohwa: "Possibility of Enhanced Strength and Self-recovery of Surface Damages of Ceramics Composites under Oxidative Conditions"Journal of European Ceramic Society. (To be published).

    • Description
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      2003 Final Research Report Summary
  • [Publications] O.Abe, Y.Ohwa: "Oxidation-derived Trilayer Composites Showing Enhanced Strength and Toughness"Journal of the Ceramics Society of Japan. (To be published).

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      2003 Final Research Report Summary
  • [Publications] O.Abe, Y.Ohwa: "Toughening of Alumina-NiAl Composites by Surface Compressive Stress Generated under Oxidation"The 40^<th> Symposium on Basic Science of Ceramics, Osaka, Jan.22-23. 82-83 (2003)

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      2003 Final Research Report Summary
  • [Publications] O.Abe: "Toughening of Ceramics Composites by Residual Compressive Stress on Surface"The 17^<th> Ceramic Research Conference of Kanto Branch, Hitachi, July.25-26. 66 (2002)

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      2003 Final Research Report Summary
  • [Publications] Y.Ohwa, S.Takata, O.Abe: "Oxidation Surface Layers contributing Toughening of NiAl/α-Al_2O_3 Composites by a Chemical Precipitation Route"Annual Meeting of the Ceramic Society of Japan, Tokyo March 22-24. 82 (2003)

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      2003 Final Research Report Summary
  • [Publications] Y.Kuranobu, S.Takata, O.Abe: "Preparation of Ni_3Al/α-Al_2O_3 Composites by a Chemical Precipitation Route"The 19^<th> Ceramic Research Conference of Kanto Branch, Hitachi, July.22-23. 65 (2003)

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      2003 Final Research Report Summary
  • [Publications] Y.Ohwa, S.Takata, O.Abe: "Mechanical Properties of NiAl/α-Al_2O_3 Composites Modified by Oxidation Reaction"The 19^<th> Cerarmic Research Conference of Kanto Branch, Hitachi, July.22-23. 60 (2003)

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      2003 Final Research Report Summary
  • [Publications] K.Takasaki, O.Abe: "Toughening of NiAl/α-Al_2O_3-based Trilayer Composites"Ibaraki District Conference, The Japan Society of Mechanical Engineering, Hitachi, Sept.21. 57-58 (2001)

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      2003 Final Research Report Summary
  • [Publications] Y.Ohwa, S.Takata, O.Abe: "Surface Modification and Toughening of Al_O_3NiAl Composites"Ibaraki District Conference, The Japan Society of Mechanical Engineerin, Hitachi, Sept.21. 157-158 (2002)

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      2003 Final Research Report Summary
  • [Publications] Y.Ohwa, S.Takata, O.Abe: "The Influence of Oxidation on Mechanicial Properties of NiAl/α-Al_2O_3 Composites"Ibaraki District Conference, The Japan Society of Mechanical Engineering, Hitachi, Sept.19. 117-118 (2003)

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      2003 Final Research Report Summary
  • [Publications] Y.Kuranobu, S.Takata, O.Abe: "Surface Modification of NiAl/Alumina Composites for Toughening"Ibaraki District Conference, The Japan Society of Mechanical Engineering, Hitachi, Sept.19. 121-122 (2003)

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      2003 Final Research Report Summary
  • [Publications] S.Takata, Y.Ohwa, O.Abe: "Surface Modification of NiAl/Alumina Composites for Toughening"1^<st> Asian International Symposium on the Science of Engineering Ceramics, Osaka, Nov.2-4. 19 (2003)

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      2003 Final Research Report Summary
  • [Publications] O.Abe, Y.Kuranobu: "Fabrication of Ni_2Al/α-Al_2O_3 Composites"The 2^<nd> Asian International Symposium on the Science of Engineering Ceramics, Aichi, Nov.10-12. 46-47 (2003)

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      2003 Final Research Report Summary
  • [Publications] O.Abe, Y.Ohwa: "Toughening of NiAl-Alumina Composites by Self-Constructed Compressive Surface Layers under Oxidation"The 8^<th> International Conference on Ceramics Processing Science, Hamberug (Germany), Sept.2-5. 52(CD-ROM). (2003)

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      2003 Final Research Report Summary
  • [Publications] O.Abe, S.Takata, Y.Ohwa: "Oxidation of NiAl/Al_2O_3 Composites for Controlled Development of Surface Layers ant Toughening"The XV^<th> International Symposium on the Reactivity of Solids, Kyoto, Sept.9-13. 119 (2003)

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      2003 Final Research Report Summary
  • [Publications] O.Abe, Y.Ohwa, Y.Kuranobu: "Possibility of Enhanced Strength and Self-recovery of Surface Damages of Ceramics Composites under Oxidative Conditions"International Symposium on Inorganic and Environmental Materials, Eintohoven (Nederland). (participation accepted). (2004)

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      2003 Final Research Report Summary
  • [Publications] O.Abe, Y.Ohwa: "Toughening of Tri-layer Alumina-NiAl Composites by Oxidation-derived Compressive Surface Stress"Annual Symposium of the Research Center for Superplasticity, Ibaraki University March 5. 34-38 (2003)

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      2003 Final Research Report Summary
  • [Publications] Y.Ohwa, O.Abe: "Toughening of NiAl-Alumina Composites by Self-Constructed Compressive Surface Layers"Annual Symposium of the Research Center for Superplasticity, Ibaraki University, March 10. 52-54 (2003)

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      2003 Final Research Report Summary
  • [Publications] O.Abe, Y.Ohwa: "Preparation and Mechanical Properties of Oxidation-derived Tri-layer composites from NiAl/α-Al_2O_3 Materials"Annual Symposium of the Research Center for Superplasticity, Ibaraki University, March 2. 39-42 (2004)

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      2003 Final Research Report Summary
  • [Publications] O.ABE, S.TAKATA, Y.OHWA: "Toughening of NiAl-alumina composites by self-constructed compressive surface layer under oxidation"Journal of European Ceramic Society. 24. 489-494 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 大輪善孝, 高田智司, 阿部修実: "酸化反応によって修飾したNiAl/α-Al_2O_3複合材料の機械的特性"日本セラミックス協会第19回関東支部研究発表会講演要旨集. 60 (2003)

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      2003 Annual Research Report
  • [Publications] 倉信洋一郎, 高田智司, 阿部修実: "化学沈殿法を利用したNi_3Al/α-Al_2O_3複合材料の作製"日本セラミックス協会第19回関東支部研究発表会講演要旨集. 65 (2003)

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      2003 Annual Research Report
  • [Publications] 大輪善孝, 高田智司, 阿部修実: "NiAl/α-Al_2O_3複合材料の機械的特性に及ぼす酸化処理の影響"平成15年度日本機械学会茨城講演会講演論文集. 117-118 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] O.Abe, Y.Ohwa: "Oxidation of NiAl/α-Al_2O_3 Composites for Controlled Development of Surface Layers for Toughening"The XV^<th> international Symposium on the Reactivity of Solids (Kyoto, Japan) Nov.11.9-13. 119 (2003)

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      2003 Annual Research Report
  • [Publications] O.Abe, Y.Kuranobu: "Fabrication of Ni_3Al/α-Al_2O_3 Composites"Proceeding of the 2^<nd> Asian International Symposium on the Science of engineering Ceramics (Aichi, Japan) Nov.10-12. 46-47 (2003)

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      2003 Annual Research Report
  • [Publications] O.ABE, S.TAKATA, Y.OHWA: "Toughening of Nial-Alumina Composites by Self-Constructed Compressive Surface Layer under Oxidation"The 8^<th> International Conference on Ceramic Processing Science (Sept.2-5.Hamburg. Germany). 69 (2002)

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      2002 Annual Research Report
  • [Publications] 大輪善孝, 高田智司, 阿部修実: "アルミナ/NiAl複合材料の表面自己組織化による強靱化"2002年日本機械学会関東支部茨城講演会講演論文集. 20. 157-158 (2002)

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      2002 Annual Research Report
  • [Publications] S.TAKATA, Y.OHWA, O.ABE: "Surface Modification of NiAl/Alumina Composites for Toughening"Proc. 21th Forum on Basic Sci. for High-Temp. Ceram./The 1^<st> Asian Int'l. Symp. on Sci. of Eng. Ceram., 2002 (Nov.4・6). 19 (2002)

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      2002 Annual Research Report
  • [Publications] O.ABE, S.TAKATA, T.NAKAJIMA: "Densification Kinetics and Microstructural Development of YTZ-Alumina Composites"Proc. 21th Forum on Basic Sci. for High-Temp. Ceram./The 1^<st> Asian Int'l. Symp. on Sci. of Eng. Ceram., 2002 (Nov.4-6). 20 (2003)

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      2002 Annual Research Report
  • [Publications] 大輪善孝, 高田智司, 阿部修実: "NiAl/アルミナ複合材料の強靱化に寄与する表面酸化層の状態"日本セラミックス協会2003年年会(平成15年3月23-24日). (発表予定,CD-ROM). 1H11 (2003)

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      2002 Annual Research Report
  • [Publications] 阿部修実: "表面残留圧縮応力を利用したセラミックス複合材料の強靭化"第17回日本セラミックス協会関東支部研究発表会講演要旨集. 66 (2001)

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      2001 Annual Research Report
  • [Publications] 滝崎勝敬, 阿部修実: "NiAl/α-アルミナ基複合材料の強靭化"日本機会学会関東支部茨城講演会講演論文集. 57-58 (2001)

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      2001 Annual Research Report
  • [Publications] 阿部修実, 大輪善孝: "酸化反応によって発生する表面残留圧縮応力を利用したアルミナ-NiAl複合材料の強靭化"第40回セラミックス基礎科学討論会講演要旨集. 82-83 (2002)

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      2001 Annual Research Report
  • [Publications] 百瀬義広: "摩擦触媒"トライボロジスト. 46. 391-397 (2001)

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      2001 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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