摘要
用SiC单纤维Al基模型复合材料使断裂源单一化，测定这些断裂源的声发射特征，成功地用声发射特征区分和识别复合材料中的纤维断裂、纤维—Al基体间的界面断裂、基体断裂，结合金相观察，分析了这些断裂源产生不同声发射特征的原因．
Acoustic emission (AE) study on SiC/Al model composite which made the fracture sources simple has been carried out. AE characteristics from fracture sources have been measured. Three kinds of fracture in SiC/Al, fiber fracture, fracture of interface between fiber and matrix and matrix fracture have been recognized and distinguished by AE characteristics. A model proposed based on AE data and metallurgical examination explains the reason of why fracture sources have different AE behaviours.
出处
《材料研究学报》
EI
CAS
CSCD
北大核心
1997年第1期15-20,共6页
Chinese Journal of Materials Research
基金
国家自然科学基金!5981003
关键词
复合材料
声发射
断裂机制
金属基
SiC/Al composite acoustic emission fracture mechanism
