Fracture Toughness of CNTs/AlN Ceramics Tested by Indentation

摘要：

CNTs/AlN ceramics were fabricated by hot-pressing sintering process. The fracture toughness was measured by indentation method. The morphologies of indentation cracks were analyzed by SEM. The results show that the facture toughness of AlN was slightly improved because appreciate toughening mechanisms such as CNTs pull-out,crack bridging and deflect operate in CNTs/AlN. In addition,the facture toughness of CNTs/AlN increased with increasing CNTs content up to 3wt％. Then,the fracture toughness decrease when the CNTs content is 4wt％.

关键词： Fracture toughness CNTs/AlN indentation method

作者: Kuang Jiacai Wang Honglei Zhou Xingui Deng Yingjun

作者单位: Department of Material Science and Engineering,Changsha University of Science & Technology,Changsha, Key Laboratory of Advanced Fibers & omposites,National University of Defense Technology,Changsha,410 Key Laboratory of Advanced Fibers & Composites,National University of Defense Technology,Changsha,41

会议类型: 国际会议

会议名称: Frist Annual Meeting on Testing and Evaluation of Inorganic Materials(第一届全国无机材料测试与评价学术年会)

会议地点: 南昌

会议语种:英文

页码: 151-153

在线出版日期: 2010-04-28（万方平台首次上网日期，不代表论文的发表时间）