摘要
本文研究了用先驱体法制备连续碳化硅(SiC)纤维的全过程。通过常压高温裂解法制得纺丝性能好的聚碳硅烷,经100孔熔融纺丝、不熔化处理和高温烧成等一系列工艺处理,制得了高性能的SiC纤维。该纤维单丝直径8～15微米,连续长度达100米,抗拉强度为2～2.3GPa,抗拉模量178GPa。主要性能达到日本同类产品八十年代的水平。本文还对制备工艺的一些基本规律及连续纤维的主要性能进行了研究。
A process was studied to make continuous silicon carbide fiber from polycarbosilane (PC) served asprecursor. The manufacture process includes the synthesis of PC, and melt spinning in an equipmentwith a nozzle of 100 holes to produce 10-15μm diameter fibers. These fibers were cured single plyyarn, and were coutinuously pyrolyzed to 1200℃ in an inert environment. They then undergo siziug, dryand drum reel to produce amorphous high performance ceramic fiber. The fibers have a tansile strengthof 2-2.3GPa and an elastic moduli of 178GPa. Their length>100m. The effect between structure andproperties of SiC fiber made by various technical parameters has been studied in this paper.
出处
《国防科技大学学报》
EI
CAS
CSCD
北大核心
1993年第1期66-72,共7页
Journal of National University of Defense Technology
关键词
聚碳硅烷
碳化硅纤维
陶瓷纤维
synthesis
polycarbosilane silicon carbide fiber
precursor
composites
