Manufacture of Unidirectional Carbon Fiber Reinforced Carbon Composites by Preformed-Yarn Method
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- Nagao Hirotaka
- Across Co., Ltd.
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- Nakagawa Takao
- Across Co., Ltd.
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- Hirai Hidefumi
- Department of Industrial Chemistry, Faculty of Engineering, Science University of Tokyo
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A bundle of polyacrylonitrile-based carbon fibers was included in a matrix precursor composed of fine pitchcoke and mesophase pitch, and was coated with polypropylene, resulting in a preformed yarn (PY). Unidirectional (UD) PY sheets, prepared by aligning the PYs, were stacked. Hot press molding of the staked UD-PY sheets at 600°C and heat treatment up to 2000°C were performed to manufacture a UD-C/C composite. Density, porosity, flexuralstrength and modulus of the resulting UD-C/C composite test pieces were measured. Flexural strength and modulusof the UD-C/C composite test pieces manufactured from PY with 40wt% pitch coke in its matrix precursor were487.3MPa and 125.4GPa, respectively. Even without impregnation, these value were superior by a factor of about 1.3than the UD-C/C composites manufactured by conventional method using phenol resin as a main component of matrixprecursor. Microstructural inspections of cross sections of the test pieces were also carried out. Any kind of pore werehardly recognized and a good fiber/matrix bonding was formed in the matrix of the UD-C/C composites manufactured from PY with 40wt% pitch coke in its matrix precursor.
収録刊行物
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- 炭素
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炭素 1999 (186), 7-12, 1999
炭素材料学会
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詳細情報 詳細情報について
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- CRID
- 1390282679204484224
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- NII論文ID
- 130004358390
- 10010050700
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- NII書誌ID
- AN00140335
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- ISSN
- 18845495
- 03715345
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- NDL書誌ID
- 4677487
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可