SiC陶瓷纤维先驱体的研究动态  

Development of Precursors of SiC Ceramic Fibers

作　　者：王浩[1] 李效东[1] 冯春祥[1] 彭平[1] 范小林[1] 

机构地区：[1]国防科技大学,长沙410073

出　　处：《宇航材料工艺》2000年第2期11-16,共6页Aerospace Materials & Technology

摘　　要：对国内外SiC系列陶瓷纤维先驱体的主要合成方法及工艺进行了总结。比较了各种方法所得先驱体的产率、杂元素含量、分子形态、分子量及其分布等结构参数 ,先驱体可纺性以及对应烧成纤维的力学性能。提出降低先驱体中杂元素含量 ,改善其可纺性及先驱丝的强度 。The synthesis and technology of the precursors of SiC ceramic fibers is summarized. The configurational parameters of the precursors yield,mixed elements content,molecular configuration,molecular weight and its distribution, spinnability and the mechanical properties of relevant ceramic fibers are evaluated. The direction of the precursors molecular design is how to reduce the mixed elements content of the precursors,improve its spinnability and tensile strength of the precursors fiber and increase the ceramic yield.

关 键 词：SIC 先驱体 合成 碳化硅陶瓷纤维 碳化硅纤维 

分 类 号：TQ343.6[化学工程—化纤工业]