논문 상세보기
Fabrication of Nano-sized WC/Co Composite Powder by Direct Reduction and Carburization with Carbon
한국분말야금학회 2006년도 춘계학술대회논문집 (2006.04)
pp.642-643
pp.642-643
한국분말재료학회(구 한국분말야금학회)
(Korean Powder Metallurgy Institute)
초록
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 mixture was heated at the temperatures of 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 powders was about 38 nm after the reaction at for 5 hours.
저자
