Yuan Bao, Tao Qiang, Zhao Xueping, Cao Ke, Cui Tian, Wang Xin, Zhu Pinwen
State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China.
Rev Sci Instrum. 2014 Jan;85(1):013904. doi: 10.1063/1.4862654.
A method for performing simultaneous measurements of the electrical resistivity and the Seebeck coefficient at high pressure and high temperature (HPHT) in cubic multi-anvil apparatus is described. For high pressure and high temperature measurements, a four-probe arrangement is used to measure the electrical resistivity and two pairs of chromel-alumel type thermocouples are employed to determine the Seebeck coefficient, respectively. Results of an expected temperature-induced phase transition, pressure-induced metallization and enhancement of the thermoelectric properties were obtained in Ag2Te. This method can provide the necessary data of thermoelectric materials at HPHT.
描述了一种在立方多砧装置中在高压和高温（HPHT）下同时测量电阻率和塞贝克系数的方法。对于高压和高温测量，采用四探针配置来测量电阻率，并分别使用两对铬镍铝型热电偶来确定塞贝克系数。在Ag2Te中获得了预期的温度诱导相变、压力诱导金属化和热电性能增强的结果。该方法可以提供高压和高温下热电材料的必要数据。
