Paper Title:
Microstructure and Properties of CuW50Cr25 Composite
  Abstract

CuW50Cr25 composite prepared by infiltration was investigated. The results show that the microstructure consists of four phases: W-rich and Cr-rich CuWCr solid solution as well as Cr-rich and Cu-rich CrCu phases. The original Cr particles in the compact are replaced part by Cu-rich CuCr phase and part by Cr-rich CrCu phase which is the first breakdown phase in the course of the material’s arcing. The chopping current value of CuW50Cr25 composite is 2.4A and arc duration is 4.01ms. These properties are much more excellent than counterpart of CuW70. The breakdown strength is 2.31×108 V/m and comparable with the CrCu contact materials.

  Info
Periodical
Key Engineering Materials (Volumes 334-335)
Edited by
J.K. Kim, D.Z. Wo, L.M. Zhou, H.T. Huang, K.T. Lau and M. Wang
Pages
541-544
DOI
10.4028/www.scientific.net/KEM.334-335.541
Citation
P. Xiao, S. H. Liang, Q. Y. Peng, Z. K. Fan, "Microstructure and Properties of CuW50Cr25 Composite", Key Engineering Materials, Vols. 334-335, pp. 541-544, 2007
Online since
March 2007
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Price
$32.00
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