纤维增强陶瓷基复合材料的强化、韧化机制

Strength and Toughness of Fiber Reinforced Ceramic Matrix Composites

在陶瓷材料中加入纤维,来改善陶瓷材料的脆性,增强陶瓷材料的韧性和强度。通过对陶瓷基复合材料应力、临界纤维长度的讨论可知,复合材料的强度应考虑纤维取向和纤维长度。阐述了几种纤维增韧的机理,用断裂功来评价断裂韧性已得到广泛应用。

Ceramic material is toughened and strengthened by adding fiber. The critical length of fiber and the stress of composites are discussed in this paper. The direction and length of fiber in the composites affect the strength of composites. Several mechanisms of toughening are described. Generally, the fracture work is used to discuss the fracture toughness.