发明名称 |
SiC fibers having low oxygen content and methods of preparation |
摘要 |
A method of preparing preceramic SiC fibers having a very low oxygen content by forming fibers from a solution of a polycarbosilane and a vinylic sic precursor in a mutual volatile solvent, heating fibers in an oxygen-free inert s atmosphere to effect a cross-linking reaction therebetween. Also disclosed is a method of preparing SiC fibers having superior high temperature properties and a very low oxygen content comprising beating the above-described cross-linked preceramic fibers in an inert atmosphere substantially free of oxygen for a time and at a temperature sufficient to pyrolyze the cross-linked fibers to SiC fibers. The disclosure also describes the novel fibers produced by the above-described methods.
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申请公布号 |
US5278110(A) |
申请公布日期 |
1994.01.11 |
申请号 |
US19930026638 |
申请日期 |
1993.03.05 |
申请人 |
UNIVERSITY OF FLORIDA |
发明人 |
TOREKI, WILLIAM;BATICH, CHRISTOPHER D. |
分类号 |
C04B35/571;(IPC1-7):C04B35/56 |
主分类号 |
C04B35/571 |
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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