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Electrical breakdown characteristic of nanostructured W−Cu contacts materials

Content Provider	Springer Nature Link
Author	Junbo, Wang Wen'ge, Chen Binjun, Ding
Copyright Year	2006
Abstract	Nanostructured (NS) W−Cu composite powder was prepared by mechanical alloying (MA), and nanostructured bulk of W−Cu contact material was fabricated by hot press sintering in an electrical vacuum furnace. The microstructure, electric conductivity, hardness and break down voltage of NS W−Cu alloys were measured and compared to those of conventional W−Cu alloys prepared by powder metallurgy. The experimental results show that microstructural refinement and uniformity can improve the breakdown behavior and the electric arc stability of nanostructured W−Cu contacts materials. Also, the nanostructured W−Cu contact material shows the characteristic of spreading electric arcs, which is of benefit to electric arc erosion.
Starting Page	32
Ending Page	35
Page Count	4
File Format	PDF
ISSN	10002413
Journal	Journal of Wuhan University of Technology-Mater. Sci. Ed.
Volume Number	21
Issue Number	4
e-ISSN	19930437
Language	English
Publisher	Wuhan University of Technology
Publisher Date	2006-01-01
Publisher Place	Wuhan
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	nanostructured materials W−Cu alloy electrical breakdown Materials Science
Content Type	Text
Resource Type	Article
Subject	Materials Science

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