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Densification and Texture Control in Carbon Fiber/Carbon Composites by Pressure Carbonization

Research Project

Project/Area Number 63470057
Research Category

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

Allocation TypeSingle-year Grants
Research Field 無機工業化学
Research InstitutionToyohashi University of Technology

Principal Investigator

INAGAKI Michio  Toyohashi University of Technology, Professor, 工学部, 教授 (20023054)

Project Period (FY) 1988 – 1989
Project Status Completed (Fiscal Year 1989)
Budget Amount *help
¥4,700,000 (Direct Cost: ¥4,700,000)
Fiscal Year 1989: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1988: ¥3,200,000 (Direct Cost: ¥3,200,000)
Keywordscarbon fiber / carbon composite / densification / texture control / matrix / pressure carbonization / pitch / phenol resin / polyethylene terephthalate / マトリックス組織 / 光学組織 / クラック伝幡 / フェノール樹脂
Research Abstract

By using pressure carbonization technique, the processes for densification and texture control of the matrix in carbon fiber/carbon composites (C/C composites) were investigated. The present work consisted of three parts; (1) the study on crack propagation in the matrix of a commercial C/C composite, (2) the study on the pressure effect on the interaction between pitch and phenol resin, and also on the texture of resultant carbons, and (3) the preliminary production of C/C composites by using two different precursors and by pressure carbonization.
The crack propagation in a C/C composite was observed under polarized liaht microscope. The texture of the matrix of C/C composite was shown to govern its mechanical properties. A fine mosaic texture of the matrix was suggested to be essential for slowing down the propagation of deteriorative crack and for getting high toughness of the C/C composite.
The size of optica units in the matrix of C/C composites was found to be controlled by mixing either polyethylene terephthalate(PET) or phenol resin into pitch. With increasing the amount of additives (PET or phenol resin), the texture of the matrix changed continuously from coarse mosaic to isotropic through medium and fine mosaic textures. The interaction between these two precursors was accelerated under pressure and the matrix with homogeneous optical texture was obtained.
In the present work, we could not have the composites with sufficiently high density and large size for studying on their fracture behavior because of the limited size of the autoclave used and the difficulty of repeated precursor impregnation. However, we could confirm the possibility for carbon fiber/carbon composite to get high density and also to control the texture of the matrix by mixing two different precursors and by carbonization under pressure.

Report

(3 results)
  • 1989 Annual Research Report   Final Research Report Summary
  • 1988 Annual Research Report
  • Research Products

    (14 results)

All Other

All Publications (14 results)

  • [Publications] 稲垣道夫: "炭素繊維/炭素複合材中のクラック進展-マトリックス光学組織との関連-" 炭素. 1989. 25-28 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] M.INAGAKI: "Morphology Change in Carbons prepared from Pitch-Polyvinyl Chloride Mixtures under Pressure" J.Mat.Sci.24. 2781-2786 (1989)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] M.INAGAKI: "Interaction between Pitch and Phenol Resin during Pressure Carbonization" Carbon(印刷中). 28. (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 稲垣道夫: "加圧下炭素化による炭素繊維/炭素複合材の試作-ピッチ・熱硬化性樹脂混合物をマトリックスとした場合-" 炭素. 1990. 17-22 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] M. Inagaki, M. Washiyama and M. Sakai: "Crack propagation in carbon fiber/carbon composites -Relation with optical texture of matrix-" TANSO, 1989 25-28, 1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] M. Inagaki, M. Urata and M. Sakai: "Morphology change in carbons prepared from pitch-polyvinylchloride mixtures under pressure" J. Mat. Sci., 24 2781-2786, 1989.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] M. Inagaki, T. Ibuki, K. Kobayashi and M. Sakai: "Interaction between pitch and phenol resin during pressure carbonization" Carbon, 1990.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] M. Inagaki, M. Washiyama, K. Kobayashi and M. Sakai: "Preparation of carbon fiber/carbon composites by pressure carbonization -Matrix from pitch-thermosetting resin mixtures-" TANSO, 1990 17-22, 1990.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1989 Final Research Report Summary
  • [Publications] 稲垣道夫: "炭素繊維/炭素複合材中のクラック進展-マトリックス光学組織との関連-" 炭素. 1989. 25-28 (1989)

    • Related Report
      1989 Annual Research Report
  • [Publications] M.INAGAKI: "Interaction between Pitch and Phenol Resin during Pressure Carbonization" Carbon. 28. (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] 稲垣道夫: "加圧下炭素化による炭素繊維/炭素複合材の試作-ピッチ-熱硬化性樹脂混合物をマトリックスとした場合" 炭素. 1990. 17-22 (1990)

    • Related Report
      1989 Annual Research Report
  • [Publications] 稲垣道夫,鷲山正芳,逆井基次: 炭素. 1989. 25-28 (1989)

    • Related Report
      1988 Annual Research Report
  • [Publications] 稲垣道夫,鷲山正芳,小林孝次,逆井基次: 炭素.

    • Related Report
      1988 Annual Research Report
  • [Publications] M.Inagaki;T.Ibuki;K.Kobayashi;M.Sakai: Carbon.

    • Related Report
      1988 Annual Research Report

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Published: 1988-04-01   Modified: 2016-04-21  

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