Experimental research on thermal transport properties of crystallized palladium-based alloys

作     者：Siyuan CHENG Xuguo SHI Weigang MA Xing ZHANG Guanglai LIU Mingxiang PAN Weihua WANG 

作者机构：Key Laboratory for Thermal Science and Power Engineering of Ministryof Education Department of Engineering Mechanics TsinghuaUniversity Beijing 100084 China Institute of Physics Chinese Academy of Sciences Beijing 100190China 

出 版 物：《Frontiers in Energy》 (能源前沿（英文版）)

年 卷 期：2018年第12卷第1期

页      面：121-126页

核心收录：

学科分类：0821[工学-纺织科学与工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 082101[工学-纺织工程] 

基　　金：国家自然科学基金 the Science Fund for Creative Research Groups the Initiative Scientific Research Program of Tsinghua University 

主　　题：palladium-based alloy T-type method ther-mal conductivity electrical conductivity Seebeck coeffi-cient 

摘      要：Palladium-based alloy is a kind of material with a high glass forming ability and can be easily formed into an amorphous state. After an annealing process, it can also be maintained at a crystallized state. To study the thermal and electrical transport properties of crystallized palladium-based alloys, the steady-state T-type method, standard four-probe method, and AC heating-DC detecting T-type method were used to measure the thermal conductivity, electrical conductivity, and Seebeck coeffi- cient of crystallized Pd4oNiloCu3oP2o and Pd43Nilo- Cu27P2o alloys respectively. The results show that compared to amorphous samples, the thermal conductivity and electrical conductivity of crystallized palladium-based alloys are significantly higher, while the Seebeck coeffi- cient is lower. The ratio of crystallized and amorphous thermal conductivity is higher for Pd43Ni10Cu27P2o alloy fiber which has a higher glass forming ability, while the ratio of electronic thermal conductivity almost remains constant for both alloy fibers. The results also show that the slope of electrical resistivity to temperature is a function of elemental composition for crystallized quaternary palla- dium-based alloy fibers. The sensitivity of thermal conductivity and electrical conductivity to the composition is high, while the correlation between Seebeck coefficient and composition is relatively weak.