摘要
采用电弧熔炼及热压烧结方法制备了MoSi2热电材料,对样品的形貌、相结构和热电性能进行了分析。结果表明:所得样品为单相MoSi2o Seebeck系数随温度的升高,在300〜650K下降,在650〜873K内上升。电导率、热导率随着温度的升高都逐渐降低。热电功率因子和ZT值在测试温度范围内先降后升,在780 K时ZT值达到最大值0.01 .
MoSi2 thermoelectric materials were prepared by arc melting and hot pressing sintering method. Themorphology, phase structure and thermoelectric properties of the samples were analyzed. The results show that the obtainedsample is single phase MoSi2. With the increase of temperature, the Seebeck coefficient decreases at 300-650 K, and whileincreases at 650-873 K. The electrical conductivity, thermal conductivity decrease with the increase of temperature. Thethermoelectric power factor and ZT value in the test temperature range first decrease and then increase. At 780K, ZT valuereaches the maximum value of 0.01.
作者
况菁
胡孔刚
江跃珍
江晓东
仪登亮
段兴凯
KUANG Jing;HU Konggang;JIANG Yuezhen;JIANG Xiaodong;YI Dengliang;DUAN Xingkai(School of Mechanical and Materials Engineering,Jiiyiang University,Jiujiang 332005,China)
出处
《热加工工艺》
北大核心
2019年第22期67-69,75,共4页
Hot Working Technology
基金
九江学院科技项目(2017KJ22)
关键词
电弧熔炼
热压烧结
MOSI2
热电性能
arc melting
hot pressing sintering
MoSi2
thermoelectric properties
