The Cyclic Oxidation Behavior of Ti2AlN and Ti2AlN/TiN Composites

摘要：

　　The cyclic oxidation behavior of Ti2AlN and Ti2AlN/TiN composites were investigated at 800℃,900℃ and 1000℃.The phase composition,thickness of oxidation layer and element content of samples were investigated by XRD and SEM coupled with EDS.The cyclic oxidation behaviors generally follow a parabolic rate law,with good thermal shock resistance.The antioxidation property of Ti2AlN/TiN composite is better than Ti2AlN.Oxidation process of single-phase Ti2AlN is composed by the outward diffusion of Al3+ and Ti4+,and inward diffusion of oxygen.Oxidation process of Ti2AlN/TiN composite consists of two parts:firstly,the oxidation of TiN,the oxidation temperature is 500℃; the second step is the oxidation of Ti2AlN,carried out in the 800-1000 ℃.

关键词： Ti2AlN Ti2AlN/TiN composite cyclic oxidation behavior antioxidation property

作者: Ming Yan Yanlin Chen Ying Chang Jiuxin Jiang

作者单位: College of Chemistry and Environmental Engineering, Hubei University of Technology, Wuhan 430068, China

会议类型: 国际会议

会议名称: the 2011 International Conference on Biotechnology, Chemical and Materials Engineering (2011生物,化学与材料工程国际会议(CBCME 2011))

会议地点: 昆明

会议语种:英文

页码: 420-423

在线出版日期: 2011-12-28（万方平台首次上网日期，不代表论文的发表时间）