摘要
本文采用溶胶－凝胶法以组成为３Ａｌ２Ｏ３２ＳｉＯ２的混合溶胶分别于常压和压力条件下，对ＳｉＣ微细粉进行包覆处理，该涂覆层在低于１０００℃下经１ｈ热处理可结晶成莫来石层，研究了涂覆溶胶浓度、涂覆压力对涂层厚度、结晶化温度等的影响。
SiC fine particles were coated with mixed sol composed of 3Al 2O 3·2SiO 2 at different pressure.The coating could crystallize into mullite when heated at 1000℃ for 1h.The influences of the concentration and pressure of the mixed sol during the coating on the thickness of the coating and the crystallization temperature were studied.The oxidation resistance of SiC particles at 1000￣1300℃ was greatly improved.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
1996年第1期31-35,共5页
Bulletin of the Chinese Ceramic Society
基金
国家自然科学基金
