Preparation and Thermoelectric Properties of SiC Matrix Composites Prepared under a Low Sintering Temperature

摘要：

　　SiC powders with nickel powders and sintering aids were prepared by pressureless sintering at 1500℃ under a N2 atmosphere.XRD,TEM,SEM techniques were used to characterize the phases and microstructure of the specimens.The thermoelectric properties of SiC matrix composites were investigated by measuring the Seebeck coefficient and the electrical conductivity.The main phase of all samples was β-SiC,the Ni2Si can be observed with adding nickel powders.The largest electric conductivity was close to 3.5 m1Ω-1 at about 973K.The highest Seeback coefficient was up to 1800 μV/K at 1073K.The transition from n-type to p-type was occurred.

关键词： Silicon carbide Thermoelectric properties Pressureless sintering

作者: Mingliang Li Hailong Wang Rui Zhang Jing Li Junhao Li

作者单位: School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China;Zhengzhou

会议类型: 国际会议

会议名称: The Sixth China International Conference on High-Performance Ceramics(第六届中国先进陶瓷国际研讨会(CICC-6))

会议地点: 哈尔滨

会议语种:英文

页码: 333-335

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）