Ag基触头材料的研究现状与展望

doi:10.11896/j.issn.1005-023X.2018.01.007

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Abstract

Contact material is the key to switching system, and its performance determines the reliability of the electrical equipment during operation. Ag-based contact materials have been widely applied in low-voltage switches. Ag/CdO exhibits excellent properties as a contact material, but the toxicity of Cd is phasing it out. Over the past decades, Ag/SnO₂, Ag/ZnO, Ag/Ni, Ag/C, Ag/W have replaced the Ag/CdO in some fields, but such replacement raises some problems such as temperature rise, large contact resistivity, poor anti-welding, weak resistance to material transfer, etc. This paper reviews the background, application, preparation, performance of Ag-based contact materials commonly used in low voltage switches. The trends in electrical contact materials including the prospect of MAX phases as reinforcement in Ag-based contact materials are discussed.

Key words： Ag-based contact materials cadmium-free contact performance MAX phase

Published: 10 January 2018

CLC number:

TG146.3

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	Jianxiang DING
	Zhengming SUN
	Peigen ZHANG
	Wubian TIAN
	Yamei ZHANG

Cite this article:

Jianxiang DING,Zhengming SUN,Peigen ZHANG, et al. Current Research Status and Outlook of Ag-based Contact Materials[J]. Materials Reports, 2018, 32(1): 58-66.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.01.007 OR http://www.mater-rep.com/EN/Y2018/V32/I1/58

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