Development of sandwich joining piece to fabricate segmented half-Heusler/skutterudite thermoelectric joints

• 作者: Wei-An Wang Xiao-Ya Li Yun-Fei Xing Ming Gu Long-Hui Fang Ye-Feng Bao Jin-Hui Fan
• 来源期刊: 稀有金属（英文版）
• 年，卷（期）: 2021,（7）
• 所属期刊栏目: ORIGINAL ARTICLES
• 页码范围: 1966-1970
• 页数: 5页
• 语种: 英文

摘要

Sn/Ni-Sn/Sn sandwich joining piece was developed and applied to fabricate segmented half-Heusler/skutterudite thermoelectric joints,and high-temperature service behavior of the joints was studied.The microstructure and contact resistance of the joint before and after aging were investigated.The joints are well bonded and no cracks appear at the interfaces of the joint before and after aging,which can be attributed to the for-mation of high-melting point intermetallic compounds.The electrical resistance crosses the joining layer smoothly and the contact resistance is low.These results show that the sandwich joining piece is effective and flexible,and promising for the preparation of segmented thermoelectric devices.