Effect of Co on microstructure and properties of Ni- Mn- Sn Heusler thermoelectric alloy
HAN Li1,2,MA Qin1,2,ZHANG Xuan- xuan1,2,FAN Dong- xiang1,2,WANYAN Shao- jun1,2
1. College of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050,Gansu, China 2. State Key Laboratory of Advanced Processing and Recycling of Non- ferrous Metals,Lanzhou 730050, Gansu, China
Abstract：Based on the excellent properties of Heusler type alloy, the Ni50-xCoxMn39Sn11 (x=0, 2, 4, 6) of Co element doping are prepared by using mechanical ball milling, vacuum melting and heat treatment. The optical microscope and energy spectrometer are used to characterize the structure of the block specimen, and the laser thermal conductivity meter and thermoelectric parameter test system are used to test thermoelectric properties of samples. The influence of Co doping on the microstructure and thermoelectric properties of Ni- based Heusler alloys at different temperatures is studied. The results showed that the amount of Co doping can improve thermoelectric properties of material, makes the conductivity add with the increase of the doping amount. The samples after the doping thermoelectric optimal value increases, and x=6 sample at 700K for maximum thermal power optimal value.
收稿日期: 2018-04-23
出版日期: 2019-02-22
通讯作者:
马勤
E-mail: maq@lut.cn
引用本文:
韩莉 马勤 张瑄瑄 樊栋祥 完彦少君 . Co对Ni- Mn- Sn系哈斯勒热电合金组织与性能的影响[J]. , 2019, 26(1): 33-38.
HAN Li,,MA Qin,,ZHANG Xuan- xuan,,FAN Dong- xiang,,WANYAN Shao- jun,. Effect of Co on microstructure and properties of Ni- Mn- Sn Heusler thermoelectric alloy. , 2019, 26(1): 33-38.
2019, Vol. 26 
