新型电极Mg2SiNi3与Mg2Si的连接和界面行为研究
Study on Bonding and Interface Behavior of New Electrode Mg2SiNi3 and Mg2Si
陈彦佐 1陈少平 1樊文浩 2徐礼彬1
作者信息
- 1. 太原理工大学 材料科学与工程学院,山西 太原 030024
- 2. 太原理工大学 物理与光电工程学院,山西 太原 030024
- 折叠
摘要
Mg2Si基热电材料是中温区间最有前途的热电材料之一.为了提高Mg2Si基热电接头的界面性能,提出了一种新型电极材料Mg2SiNi3 作为Mg2Si的电极材料,并采用放电等离子烧结技术(SPS)实现了Mg2SiNi3 和Mg2Si的连接.同时,测试分析了所得接头的界面微观形貌、界面电性能、力学性能以及稳定性.结果表明,Mg2SiNi3 与Mg2Si烧结后形成了完整的冶金结合,界面处各组成元素均实现了均匀过渡;界面接触电阻得到了有效地优化,而且接头以及界面稳定性良好;时效前后,界面性能均未出现大幅的退化.Mg2SiNi3 的提出为Mg2Si基热电器件设计和集成提供了一种新的思路.
Abstract
Mg2Si-based thermoelectric material is one of the promising thermoelectric materials in the middle-temperature range.To improve the interfacial properties of Mg2Si based thermoelectric joints,a novel electrode material Mg2SiNi3 used as Mg2Si electrode material was proposed,and the connection between Mg2SiNi3 and Mg2Si was realized by discharge plasma sintering(SPS).At the same time,the interfacial morphology,interfacial electrical properties,mechanical properties and stability of the joints were analyzed.The results show that the Mg2SiNi3 and the Mg2Si have formed a complete metallurgical bond after sintering,and all the components at the interface have achieved uniform transition.The interface contact resistance is optimized effectively,and the joints have good interfacial stability.Before and after aging,no significant degradation of interface performance occurs.The proposed Mg2SiNi3 provides a new idea for the design and integration of Mg2Si-based thermal appliances.
关键词
扩散连接/Mg2Si/Mg2SiNi3/热电接头/界面性能Key words
diffusion bonding/Mg2Si/Mg2SiNi3/thermoelectric joints/interfacial properties引用本文复制引用
基金项目
国家自然科学基金(51775366)
山西省然科学基金(201801D121017)
山西省然科学基金(201901D111116)
山西省回国留学人员科研项目(2017-050)
山西省回国留学人员科研项目(2017-028)
出版年
2024
NETL
NSTL
万方数据