GAMMA-RAY IRRADIATION CURING ON POLYCARBOSILANE FIBERS AS THE PRECURSOR OF SIC FIBERS

被引：28

作者：

OKAMURA, K ^{[1
]}

MATSUZAWA, T ^{[1
]}

HASEGAWA, Y ^{[1
]}

机构：

[1] RES INST SPECIAL INORGAN MAT,ASAHI,IBARAKI 31114,JAPAN

来源：

JOURNAL OF MATERIALS SCIENCE LETTERS | 1985年 / 4卷 / 01期

关键词：

GAMMA RAYS - PLASTICS - Radiation Effects - SILICON CARBIDE;

D O I：

10.1007/BF00719895

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

SiC fibers are prepared using polycarbosilane (PC) as follows. PC is melt-spun into fibers, cured, and then heated at high temperature under a non-oxidizing atmosphere to give the SiC fibers. The curing process is pre-heating PC fibers in air at 110 to 190 degree C. This process is crosslinking of the PC molecules by oxygen introduced by the preheat treatment, which makes the PC fibers infusible. Besides this preheat treatment curing, the curing process of PC fibers by gamma -ray irradiation is conceivable. In the study reported in this paper, the curing effect of gamma -ray irradiation on the PC fibers was examined by irradiating these fibers with varying gamma -ray doses from 10**4 to 10**9 R.

引用

页码：55 / 57

页数：3