摘要
纤维与基体间的物化相容性是决定纤维增强陶瓷的关键。高强度、高模量纤维为制得高强高韧的复合材料所必需。基体与纤维间的热膨胀应相匹配,最好是纤维的热膨胀系数稍大于基体。纤维与基体间的化学反应会引起纤维性能的退化。基体与纤维间的界面结合强度以适宜为度。本文通过扫描电镜、电子探针等手段观察分析了纤维与基体的形貌及界面结合状况,讨论了复合材料结构与性能的关系。
The performance of fiber reinforcing ceramic lorgely depend on the physical and chemical com-patibility between fiber and matric. Fiber which has high strength and high elestic modulus is re-quired for fabricating high strength and high fracture toughness comopsites. The thermal expansioncoefficient mast suit, and it is desired that the thermal expansion coefficient of fiber is bigger thanthat of matric somewhat. The reaction between fiber and matric will cause degradation of the fiberproperty. The binding force between fiber and matric must suitoble. The form of fiber and matric,the binding between fiber and matric have been observed and research with SEM and EPAM etc, andthe relationships of the structure and the performace have been discussed.
