Paper Title:
Enhancement of Microstructural Homogeneity of W-Cu Pseudo-Alloy by Adding W-Cu Composite Powder in Infiltration Process
  Abstract

An infiltration technique using W-Cu composite powder has been developed to enhance microstructural uniformity of W-Cu pseudo-alloy. W-Cu composite powder, manufactured by reduction from WO3 and CuO powder mixtures, were blended with W powder and then cold isostatically pressed into a cylindrical bar under 150 MPa. The pressed samples were pre-sintered at 1300 oC for 1 hour under hydrogen to make a skeleton structure. This skeleton structure was more homogeneous than that formed by using W and Cu powder mixtures. The skeleton structures were infiltrated with Cu under hydrogen atmosphere. The infiltrated W-Cu pseudo-alloy showed homogeneous microstructure without Cu rich region.

  Info
Periodical
Materials Science Forum (Volumes 534-536)
Edited by
Duk Yong Yoon, Suk-Joong L. Kang, Kwang Yong Eun and Yong-Seog Kim
Pages
1257-1260
DOI
10.4028/www.scientific.net/MSF.534-536.1257
Citation
M. H. Hong, J. H. Choi, S. Lee, E. P. Kim, J. W. Noh, S. H. Lee, Y. M. Kim, "Enhancement of Microstructural Homogeneity of W-Cu Pseudo-Alloy by Adding W-Cu Composite Powder in Infiltration Process", Materials Science Forum, Vols. 534-536, pp. 1257-1260, 2007
Online since
January 2007
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Price
$35.00
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