摘要
将碳纤维/榴石陶瓷基复合材料在空气气氛不同的温度下保温60 min,研究了其显微组织结构和物相组成,测试了其残余力学性能和断裂模式,进而评价其高温抗氧化行为。结果发现在900℃以内复合材料具有较好的抗氧化行为,即使在900℃氧化60 min后,其弯曲强度为164.9 MPa,仍能保持原始强度的~50%,表明此类材料潜在的中温应用价值。
Carbon fiber reinforced leucite composites were oxidized at different temperatures in air. Microstructure and phase composition were investigated together with residual mechanical properties and failure modes, to evaluate their higher temperature oxidation resistance. The results show that the composites exhibit sound oxidation resistance at 900 oC. Even after being oxidized at 900 oC for 60 min, the composites still retained flexural strength of 164.9 MPa, which is ~50 % of the original one, indicating its potential application at high temperature.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2015年第S1期166-170,共5页
Rare Metal Materials and Engineering
基金
中央高校基本科研业务费专项资金(HIT.NSRIF.20165)
国家自然科学基金(51372048
51225203
51321061)
