热交联聚碳硅烷纤维分步烧成工艺

Study of the Step-by-step Sintering Process of the Poly carbosilane Fibers Cured by Thermal Cross-linking

采用热交联工艺改进传统的空气不熔化工艺,在尽可能少引入氧的情况下实现聚碳硅烷纤维的不熔化处理。热交联处理后聚碳硅烷纤维在惰性气氛下进行分步烧成。通过元素分析、SEM、EDX、XRD等手段系统研究了分步烧成的工艺条件以及烧成后连续SiC纤维组成、微观结构及其性能。

Thermal curing process was adopted to improve traditional air-process to reduce the oxygen content of the continuous silican carbide fibers by leading oxygen as less as possible to the fibers during the curing treatment. The polycarbosilane fibers cured by thermal curing are sintered step by step. The condition of sintering process and the element composition, microstructure and properties of the fibers are studied in details by element analysis, SEM, EDX, XRD.