Ceramic Matrix Composites
Ceramic Matrix Composites
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DOI：
10.14429/dsj.43.4292
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发表时间：
1993
影响因子：
0.9
通讯作者：
J. Mukerji
中科院分区：
文献类型：
--
作者：
J. Mukerji
综述了陶瓷基复合材料的研究现状。现有结构陶瓷的断裂韧性不足以设计出具有陶瓷部件的高性能机械。它们也会因灾难性的脆性断裂而失效。人们普遍认为，只有用陶瓷纤维、颗粒或薄片制成陶瓷复合材料，才能进一步提高断裂韧性。只有能够在1000摄氏度以上工作的陶瓷基复合材料才被处理，将增强塑料和金属增强陶瓷排除在范围之外。讨论了复合材料增韧和制备的基本机理及存在的困难。给出了可利用的纤维和晶须的性质。指出了到目前为止所取得的最好结果。讨论了陶瓷基复合材料性能改善的局限性。
The present state of the knowledge of ceramic-matrix composites have been reviewed. The fracture toughness of present structural ceramics are not enough to permit design of high performance machines with ceramic parts. They also fail by catastrophic brittle fracture. It is generally believed that further improvement of fracture toughness is only possible by making composites of ceramics with ceramic fibre, particulate or platelets. Only ceramic-matrix composites capable of working above 1000 degree centigrade has been dealt with keeping reinforced plastics and metal-reinforced ceramics outside the purview. The author has discussed the basic mechanisms of toughening and fabrication of composites and the difficulties involved. Properties of available fibres and whiskers have been given. The best results obtained so far have been indicated. The limitations of improvement in properties of ceramic-matrix composites have been discussed.