Preparation of Coated ZrSiO4-ZrB2 Using Sol-Gel Method and its Oxidation Resistance

摘要：

　　In this paper, coated ZrSiO4-ZrB2 powder was prepared by sol-gel method.The ZrSiO4 coating can improve the oxidation resistance of ZrB2 at high temperature.The effect of N (nZrSiO4/nZrB2), sintering temperature, holding time and catalytic hydrolysis condition of tetraethoxysilane (TEOS) on coated ZrSiO4-ZrB2 powder was discussed.The modem testing techniques such as XRD, SEM and TG-DSC were used to analyze the crystal phase compositions, microstructures and the oxidation resistance property.The results of experiments showed that the oxidation resistance of coated ZrSiO4-ZrB2 powder was excellent when N is 0.7, and TEOS is alkaline-catalyzed hydrolyzed.

关键词： Coated ZrSiO4-ZrB2 Sol-gel method Oxidation resistance

作者: Meng Chen Jun-guo Li Hai-tao Yang Qiang Shen Lian-meng Zhang

作者单位: State Key Lab of Advanced Technology for Materials Systhesis and Prcessing, Wuhan University of Technology, Wuhan 430070, China

会议类型: 国际会议

会议名称: The 2016 China Functional Materials Technology and Industry Forum (2016中国国际功能材料大会暨第九届中国功能材料及其应用学术会议)

会议地点: 重庆

会议语种:英文

页码: 947-952

在线出版日期: 2016-07-25（万方平台首次上网日期，不代表论文的发表时间）