DocumentCode
3176843
Title
Phase transformation in melt layer of CuCr contact materials after breaking operations
Author
Yang, Zhimao ; Yan, Qun ; Ding, Bingjun ; Wang, Xiaotian
Author_Institution
Sch. of Mater. Sci. & Eng., Xian Jiaotong Univ., China
fYear
1995
fDate
2-4 Oct. 1995
Firstpage
242
Lastpage
246
Abstract
The particles and melt layer on the surface of a contact play an important role in the contact performance. In this paper, the surface and the cross section of a CuCr50 contact after breaking operations were observed by SEM and TEM. Experimental results show that Cu and Cr particles were different on the surface of the contact and Cr particles were smaller than those precipitated from the melt layer. Distribution of Cu and Cr in the melt layer is also discussed.
Keywords
chromium alloys; copper alloys; electrical contacts; vacuum interrupters; CuCr; CuCr contact materials; SEM; TEM; breaking operations; melt layer; particles; phase transformation; precipitation; surface; Chromium alloys; Contacts; Cooling; Copper; Dielectric breakdown; Interrupters; Materials science and technology; Surface cracks; Switches; Temperature dependence;
fLanguage
English
Publisher
ieee
Conference_Titel
Electrical Contacts, 1995., Proceedings of the Forty-First IEEE Holm Conference on
Conference_Location
Montreal, Quebec, Canada
Print_ISBN
0-7803-2728-4
Type
conf
DOI
10.1109/HOLM.1995.482877
Filename
482877
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