W骨架连接度对W-Cu复合材料耐电弧烧蚀性能的影响  

Effect of W-W Contiguity on Arc Ablation Resistance of W-Cu Composite

作　　者：曹伟产 刘楠 陈铮 张乔 肖鹏[2] 梁淑华[2] CAO Weichan;LIU Nan;CHEN Zheng;ZHANG Qiao;XIAO Peng;LIANG Shuhua(Xi'an XD Switchgear Electric Co.,Ltd.,Xi'an 710077,China;School of Materials Science and Engineering,Xi'an University of Technology,Xi'an 710048,China)

机构地区：[1]西安西电开关电气有限公司,西安710077 [2]西安理工大学材料科学与工程学院,西安710048

出　　处：《电工材料》2022年第1期3-6,共4页Electrical Engineering Materials

基　　金：国家自然科学基金(U1866203);陕西省重点研发计划项目(2020GY-300)。

摘　　要：采用不同的W粉原料制备出W骨架连接度不同的W-Cu复合材料。利用电击穿设备测试了其耐电弧烧蚀性能,并观察了多次击穿后的烧蚀形貌。试验结果表明:高的W骨架连接度可以增加对液相Cu的虹吸作用,减少Cu相的喷溅,并通过大量Cu相的气化降低W骨架的温度,进而减少W骨架的熔化和材料的整体烧蚀量。W-Cu composite materials with different W-W contiguity were prepared by using different W powder raw materials.The arc ablation resistance was tested using electrical breakdown equipment,and the ablation morphology after multiple breakdowns was observed.The experimental results showed that high W-W contiguity can increase the siphoning effect on liquid Cu,reduce Cu phase splashing,and decrease the temperature of W skeleton through the gasification of a large amount of Cu phase,thereby reducing the melting of W skeleton and material degradation.

关 键 词：W-CU 电弧烧蚀 W骨架 连接度 熔渗 

分 类 号：TM503.5[电气工程—电器]