材料科学
复合材料
热解
泥浆
聚合物
结晶
化学工程
工程类
作者
C.A. Nannetti,Sophia Haussener,Dario A. de Pinto,B. Riccardi
标识
DOI:10.1111/j.1551-2916.2004.tb20093.x
摘要
Two- and three-dimensional SiCr/SiC composites have been prepared starting from Tyranno SA(tm) fiber preforms. Preform densification has been performed by a modified preceramic polymer impregnation and pyrolysis (PIP) process consisting of filling the preform large interbundle voids with SiC powder before the PIP process. This step was accomplished by low-pressure infiltration of a SiC powder dilute slurry through the preform thickness. Specimens were further processed with polymer impregnation and pyrolysis to determine the effects on structural, thermal, and mechanical properties of the obtained composites. High-temperature pyrolysis treatment, which promoted polymer derived SiC matrix crystallization, markedly increased thermal diffusivity.
科研通智能强力驱动
Strongly Powered by AbleSci AI