摘要
采用气压浸渗法实现了SiC/Al和SiO2构件的原位连接,SiC/Al复合材料组织浸渗致密,SiC颗粒的分布较均匀。该复合材料的主要断裂机制为基体和颗粒的混合断裂。SiC/Al和SiO2构件在界面处发生了反应,主要生成了Al2O3和Si。SiC/Al/SiO2的抗弯强度随保温时间的增加而增加,10 min为最佳的保温时间。
SiO2 was bonded with SiC/A1 by pressure infiltration. SiC/A1 composite was well infiltrated and the distribution of SiC particle was uniform. The main fracture mechanism is the mixture of matrix and particle fracture. The chemical reaction occurs in SiC/A1-SiO2 interface and the main formations are A1203 and Si. The bending strength of SiC/A1/SiO2 increases as the holding time increasing and 10 min is determined to be the optimal holding time.
出处
《热加工工艺》
CSCD
北大核心
2012年第24期134-136,共3页
Hot Working Technology
基金
国家自然科学基金资助项目(60776019)
关键词
复合材料
界面
抗弯强度
composite
interface
bending strength
