摘要
研究了单向铺层的T300/5405复合材料在六种湿热环境中的吸湿行为,并利用扫描电镜研究了材料吸湿过程中的形貌变化。同时计算了在不同湿热条件下的水分扩散系数。结果表明在较高的温度和湿度下会使水分的扩散速率增加。老化后试样的剪切强度、弯曲强度和压缩强度随着老化时间的延长均有所下降,同时在相同的温度条件下,提高湿度会使材料的力学性能下降更快。
The moisture absorption behaviors of uni-directional T300/5405 composite were studied in six kind of different hygrothermal environment.The morphology of the composites in the absorption processes was observed with SEM.The diffusivity in each environment was calculated.The shear strength,flexural strength and compression strength of the aging samples were measured.The results show that the diffusivity increases with the high temperature and humidity.Mechanical properties of the composites decline with the aging times,and the humidity in the same temperature makes the properties dropped faster.
出处
《航空材料学报》
EI
CAS
CSCD
北大核心
2010年第4期75-80,共6页
Journal of Aeronautical Materials
关键词
先进复合材料
湿热老化
力学性能
吸湿量
advanced composite
hygrothermal aging
mechanical properties
absorption
