AgSnO_(2)触头微观结构设计及电弧侵蚀模拟的进展  

Research progress on microstructure design and arc-erosion simulation of AgSnO_(2) contact materials

作　　者：杜丹 赵强莉 王哲 王军 陈思宇 DU Dan;ZHAO Qiang-li;WANG Zhe;WANG Jun;CHEN Si-yu(School of Materials Science&Engineering,Xi’an Polytechnic University,Xi’an 710048,China)

机构地区：[1]西安工程大学材料工程学院,西安710048

出　　处：《贵金属》2021年第2期72-83,共12页Precious Metals

基　　金：国家自然科学基金(52007137和51607132);陕西省自然科学基础研究计划项目(2019JQ-842和2019JQ-846);陕西省教育厅科研计划专项(20JK0661和19JK0371);西安市碑林区科技计划项目(GX2005)。

摘　　要：AgSnO_(2)作为一种无毒环保材料,因其优良的电接触性能而被广泛应用于低压开关和电源继电器领域。本文综述了近年来AgSnO_(2)触头材料的研发进展:在实验方面,分析比较了不同AgSnO_(2)电接触材料制备工艺的优缺点,介绍了AgSnO_(2)触头材料掺杂改性途径及其作用机理;在模拟方面,重点阐述了动、静触头电弧侵蚀过程以及触头微观结构演变行为,概述了基于第一性原理的触头掺杂体系的理论分析,介绍了考虑阳极蒸汽的真空电弧模拟研究。提出了结合实验和多尺度、多体系模拟来设计和研发新型AgSnO_(2)触头材料,对提高精密电气设备的可靠性和稳定性具有重要意义。As a non-toxic and environment friendly materials,AgSnO_(2)is widely used in the field of low voltage switches and power relays due to its excellent electrical contact performance.In this paper,the recent developments of AgSnO_(2)contact materials were introduced.In term of experiments,the advantages and disadvantages of the preparation processes in AgSnO_(2)contact materials were analyzed and compared,and the approach and mechanism of doping modification into AgSnO_(2)contact materials were introduced.In terms of simulation,the arc erosion process of moving and stationary contacts and the evolution behavior of the contact microstructure were mainly explained,and the theoretical analysis of the contact doping system based on the first principle was summarized,and the simulation of vacuum arc in the anode steam of contacts were introduced.It was proposed to design and develop a new type of AgSnO_(2)contact material combining experiments and multi-scale and multi-system simulation,which is of great significance to improve the reliability and stability of precision electrical equipment.

关 键 词：AGSNO2触头材料 制备工艺 掺杂改性 电弧模拟 

分 类 号：TM501[电气工程—电器]