Experimental investigation of the erosion behavior in high-current vacuum arcs and the resulting microparticle dynamics

被引：10

作者：

Jiang, Fengfeng ^{[1
]}

Wu, Yi ^{[1
]}

Wu, Yifei ^{[1
]}

Cui, Yufei ^{[1
]}

Rong, Mingzhe ^{[1
]}

Sun, Hao ^{[1
]}

Long, Chen ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Shannxi, Peoples R China

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2021年 / 54卷 / 39期

基金：

中国国家自然科学基金;

关键词：

microparticle; high-current vacuum arc; arc erosion; CuCr alloy; CONTACT MATERIALS; ANODE MODES; CATHODE; METAL; TEMPERATURE; ENHANCEMENT; DENSITY; SURFACE;

D O I：

10.1088/1361-6463/ac0fac

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Microparticles are an inevitable component of vacuum arcs. This paper focused on the dynamics of microparticle and erosion behavior in high-current vacuum arcs. The arc was sustained with AC 110 Hz between two butt CuCr alloy contacts with a diameter of 10 mm. An in situ microparticle diagnostic system suitable for vacuum arcs was developed. Three sources of microparticles were observed and the corresponding motion characteristics were obtained by our method. The influence of current and Cr content on erosion characteristics was investigated. The results indicate that the increase of Cr content contributes to inhibiting production of microparticles when the current is small. CuCr30 has the best effect of suppressing microparticle production among the three tested alloy materials under large current. The work of this paper helps with the understanding of microparticle behavior in high-current vacuum arcs and may provide a path for the design of a vacuum electrode.

引用

页数：11

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