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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．
The SiC single fiber Al matrix composites were used to homogenize the source of fracture. The acoustic emission characteristics of these sources were determined. Acoustic emission characteristics were used to distinguish and identify the fiber fracture in the composite, the interface between fiber and Al matrix, Fracture, combined with metallographic observation, analyzes the causes of different acoustic emission characteristics of these sources.