Effect of contact materials on the transient characteristics of vacuum arc plasma and anode erosion

作     者：Ze YANG Dongsheng CAI Qi HUANG Lijun WANG 杨泽;蔡东升;黄琦;王立军

作者机构：College of Nuclear Technology and Automation EngineeringChengdu University of TechnologyChengdu 610059People’s Republic of China Postdoctoral Mobile Station in Nuclear Science and TechnologyChengdu University of TechnologyChengdu 610059People’s Republic of China School of Information EngineeringSouthwest University of Science and TechnologyMianyang 621010People’s Republic of China State Key Laboratory of Electrical Insulation and Power EquipmentXi’an Jiaotong UniversityXi’an 710049People’s Republic of China 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2024年第26卷第11期

页      面：170-180页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 

基　　金：supported by the Sichuan Science and Technology Program (No. 2024NSFSC0867) National Natural Science Foundation of China (No. 52377157) 

主　　题：vacuum arc MHD model anode erosion contact materials 

摘      要：In this study, the mechanisms of the anode phenomena and anode erosion with various contact materials were investigated. Arc parameters were calculated, and the anode temperature was predicted with a transient self-consistent model. The simulation results predicted a constricted arc column and obvious anode phenomena in Cu–Cr alloy contacts than in W–Cu alloy *** observation could be the reason for the concentrated anode erosion in Cu–Cr alloys. For the contacts made by pure tungsten(W) and W–Cu alloy, the anode temperature increased rapidly because of the low specific heat of W. However, the maximum energy flux from the arc column to the anode surface was lower than in other cases. The simulation results were compared with experimental results.