Paper Title:
Fabrication of Nano-Sized WC/Co Composite Powder by Direct Reduction and Carburization with Carbon
  Abstract

Direct reduction and carburization process was thought one of the best methods to make nano-sized WC powder. The oxide powders were mixed with graphite powder by ball milling in the compositions of WC-5,-10wt%Co. The mean size of mixed powders was about 250 nm after milling. The mixture was heated at the temperatures of 600~800°C for 5 hours in Ar. The reaction time of the reduction and carburization was decreased as heating temperatures and cobalt content increased. The mean size of WC/Co composite powders was about 260 nm after the reactions. And the mean size of WC grains in WC/Co composite powder was about 38 nm after the reaction at 800°C for 5 hours.

  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
1185-1188
DOI
10.4028/www.scientific.net/MSF.534-536.1185
Citation
D. R. Lee, W. J. Lee, "Fabrication of Nano-Sized WC/Co Composite Powder by Direct Reduction and Carburization with Carbon", Materials Science Forum, Vols. 534-536, pp. 1185-1188, 2007
Online since
January 2007
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Price
$32.00
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