无机材料学报Issue(3)：256-260,5.DOI:10.15541/jim20140378
Yb0.3Co4Sb12/Mo-Cu热电元件的界面结构与界面电阻
Interface Structure and Electrical Property of Yb0.3Co4Sb12/Mo-Cu Element Pre-pared by Welding Using Ag-Cu-Zn Solder
摘要
Abstract
The barrier layer of Ti-Al and the contact layer of Ni were joined to Yb0.3Co4Sb12 simultaneously by us-ing spark plasma sintering (SPS) technique. The Mo-Cu electrode was then welded to thermoelectric element Yb0.3Co4Sb12/Ti-Al/Ni by using Ag-Cu-Zn alloy as solder. SEM results show that there are no cracks at the inter-faces of Yb0.3Co4Sb12/Ti-Al/Ni/Ag-Cu-Zn/Mo-Cu thermoelectric joints. The EDS analysis shows that intermetallic compounds (IMCs) layer containing AlCo, TiCoSb and TiSb2 phases are formed at the interface between Yb0.3Co4Sb12 and Ti-Al. After thermal aging at 500℃ for 30 d, the inter-diffusions at both Yb0.3Co4Sb12/Ti-Al inter-face and Ag-Cu-Zn/Ni interface tend to be steady. The contact electrical resistivity of the Yb0.3Co4Sb12/ Ti-Al/Ni/Ag-Cu-Zn/Mo-Cu thermoelectric joints are about 6.1μΩ·cm2after welding, and it maintained as low as 10μΩ·cm2 even after thermal aged for 30 d.关键词
热电元件/放电等离子烧结/钎焊/接触电阻率Key words
thermoelectric element/SPS/braze/contact electrical resistivity分类
信息技术与安全科学引用本文复制引用
唐云山,柏胜强,任都迪,廖锦城,张澜庭,陈立东..Yb0.3Co4Sb12/Mo-Cu热电元件的界面结构与界面电阻[J].无机材料学报,2015,(3):256-260,5.基金项目
国家973计划项目(2013CB632504) （2013CB632504）
国家自然科学基金(51102260) （51102260）
国家国际科技合作项目(2011DFB60150) （2011DFB60150）
上海市科委技术标准专项基金(13DZ0501803) National Basic Research Program of China (2013CB632504) （13DZ0501803）
National Natural Science Foundation of China (51102260) （51102260）
International S＆T Cooperation Program of China(2011DFB60150) （2011DFB60150）
Program of Shanghai Science Techn-ology Committee (Special Technical Standards 13DZ0501803) （Special Technical Standards 13DZ0501803）
