发明名称 |
CARBON FIBER-REINFORCED CARBON COMPOSITE MATERIAL AND PRODUCTION THEREOF |
摘要 |
PURPOSE:To obtain a C/C composite having low porosity and high strength in high efficiency by preparing a carbon fiber-reinforced carbon composite material using a specific treatment and depositing heat-decomposed carbon in the pore of the obtained composite material. CONSTITUTION:A formed article composed of carbon fiber and a raw material for a carbonaceous matrix is carbonized. The obtained carbonized product is impregnated with pitch or resin and again carbonized to obtain a carbon fiber-reinforced carbon composite material having a porosity of 8-15%. A heat- decomposed carbon is deposited in the pore of the obtained carbon fiber- reinforced carbon composite material by heat-decomposing a hydrocarbon at 950-1200 deg.C under a pressure of 10-200Torr to obtain the objective densified composite material having a porosity of <=6%. Methane is especially preferable as the hydrocarbon to be used in the above process from the viewpoint of the easiness of reaction control and the production efficiency. |
申请公布号 |
JPH02145477(A) |
申请公布日期 |
1990.06.04 |
申请号 |
JP19880296894 |
申请日期 |
1988.11.24 |
申请人 |
NIPPON STEEL CORP;NIPPON STEEL CHEM CO LTD |
发明人 |
KONO TARO;TADOKORO MASAAKI |
分类号 |
C04B35/83;C04B35/52 |
主分类号 |
C04B35/83 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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