The degradation behavior of SiC coated PIP-C/SiC composites in thermal cycling environment

被引：18
|
作者：
Xiang Yang [1 ]
Liu Ying [1 ]
Cai Hua-fei [1 ]
Cao Feng [1 ]
机构：
[1] Natl Univ Def Technol, Sci & Technol Adv Ceram Fibers & Composites Lab, Changsha 410073, Hunan, Peoples R China
来源：
COMPOSITES PART B-ENGINEERING | 2015年 / 79卷
基金：
中国国家自然科学基金;
关键词：
Carbon fibre; Ceramic-matrix composites (CMCs); High-temperature properties; Damage mechanics; Chemical vapour deposition (CVD); MECHANICAL-PROPERTIES; MATRIX COMPOSITES; CARBIDE COATINGS; CARBON-FIBERS; MICROSTRUCTURE; INFILTRATION; TEMPERATURE; FABRICATION; PYROLYSIS;
D O I：
10.1016/j.compositesb.2015.04.028
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
C/SiC composites had been considered as structural material in complex and harsh environments, thermal stability was one of the key issues for C/SiC composites. This study aimed to investigate C/SiC composites in thermal cycling environment. SiC coating on carbon fibers via chemical vapor deposition at time from 0.5 h to 5 h was studied, and then the degradation behavior of coated C/SiC composites had been measured by thermal cycling tests. The results showed that the coating was continuous and uniform, with good surface adhesion. The interface of carbon fibers and SiC coating was partially destroyed during thermal shock tests. The degradation of mechanical properties was closely related to the evolution of the damage in the composites. (C) 2015 Elsevier Ltd. All rights reserved.
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页码：204 / 208
页数：5
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