发明名称 |
PROCESS FOR PRODUCING REINFORCING SIC FIBER FOR SIC COMPOSITE MATERIAL |
摘要 |
A mixed polymer liquid is prepared by mixing a polycarbosilane-dissolved organic solvent with poly(methylsilane) and moderated to viscosity of 5-20 Pa.s by heat-treatment to promote partial cross-linking reaction. The mixed-polymer is then melt-spun to fiber at 250-350 DEG C. The fiber is cured by treatment at 100-200 DEG C in an oxidizing atmosphere, and baked at 1000 DEG C or higher. Due to thermosetting action of poly(methylsilane), the mixed polymer liquid is continuously melt-spun without breakage, and SiC fiber produced in this way is useful for reinforcement of SiC composite excellent in toughness, strength and heat-resistance. |
申请公布号 |
EP1435405(A1) |
申请公布日期 |
2004.07.07 |
申请号 |
EP20010274199 |
申请日期 |
2001.11.13 |
申请人 |
JAPAN SCIENCE AND TECHNOLOGY CORPORATION |
发明人 |
OKAMURA, KIYOHITO;NARISAWA, MASAKI;NISHIOKA, MASAKI;DOHMARU, TAKAAKI;OKA, KUNIO;KATOH, YUTAI;KOHYAMA, AKIRA |
分类号 |
D01F9/10;(IPC1-7):D01F9/10 |
主分类号 |
D01F9/10 |
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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