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1992 Fiscal Year Final Research Report Summary

Fundamental Research on Carbon-based Composites with High Resistant Property for Oxidation.

Research Project

Project/Area Number 03650629
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 無機工業化学・無機材料工学
Research InstitutionNagasaki University

Principal Investigator

KOBAYASHI Kazuo  Nagasaki University, Department of Materials Science and Engineering, Prof., 工学部, 教授 (30225495)

Co-Investigator(Kenkyū-buntansha) TAKAO Yuuji  Nagasaki University, Department of Materials Science and Engineering, Assistant, 工学部, 助手 (20206709)
UCHIYAMA Yasuo  Nagasaki University, Department of Materials Science and Engineering, Associate, 工学部, 助教授 (50039690)
EGASHIRA Makoto  Nagasaki University, Department of Materials Science and Engineering, Prof., 工学部, 教授 (60037934)
Project Period (FY) 1991 – 1992
KeywordsCarbon / Carbon fiber / Ceramics / Composite / Oxidation
Research Abstract

1) Oxidation of mesophase-pitch carbon fibers with different microstructure and different graphitization degree were investigated and compared with those of PAN carbon fiber. Striation and pits formed on the surface by oxidation and the morphological change suggested that oxidation behavior was affected strongly by microstructure of the fiber.
2) High temperature oxidation tests for carbon/B_4C/SiC composites showed that there were three different oxidation behaviours depending on the range of oxidation temperature of below 700゚C, 800-1000゚C and above 1100゚C. The oxide layer formed at 1200゚C was suggested to be SiO_2 rich phase and remark-ably stable as a protective layer against oxidation.
3) Boron-doping was known to be effective to improve oxidation resistance of carbon fiber and C/C composite.

  • Research Products

    (8 results)

All Other

All Publications (8 results)

  • [Publications] 小林 和夫: "異なる雰囲気下における炭素/SiC/B_4C複合体の高温酸化挙動" 炭素. 1992. 20-26 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 小林 和夫: "メソフェーズピッチ系炭素繊維の高温空気酸化に伴う形態変化" 炭素. 1992. 27-34 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Kobayashi: "Oxidation Behaviour of Carbon/B_4C/Sic Composite in Dry and Moist Air" 日本セラミックス協会学術論文誌. 100. 398-403 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 小林 和夫: "Congress Book of Heat & Surface'92" The Japan Society for Heat Treatment Research Institute for Applied Sciences, 630 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 前田 和敏: "Proceedings of the 9th Korea-Japan Seminar on New Ceramics" 韓日New Ceramics Seminar組織委員会, 396 (1992)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Kazuo Kobayashi: "Morphological Change of Pitch-based Carbon Fiber by Air Oxidation at High temperature" Tanso. 1992,151. 27-34 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kazuo Kobayashi: "High Temperature Oxidation of Carbon/Sic/B_4C Composites in Different Atmospheres" Tanso. 1992,151. 20-26 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Kazuo Kobayashi: "Oxidation Behavior of Graphite/B_4C/SiC/ZrB_2 Composite in Dry and Moist Atmospheres"" J. Ceram. Soc. Japan. 100,4. 398-403 (1992)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1994-03-24  

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