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한국분말야금학회 2006년도 춘계학술대회논문집 (2006.04)
pp.646-647
pp.646-647
한국분말재료학회(구 한국분말야금학회)
(Korean Powder Metallurgy Institute)
초록
Nano-sized WC particles in WC/Co composite powders were synthesized by mechanochemical method. The raw powders and graphite) were mixed by planetary milling for 30 hours. The compositions were WC-10 and -20 wt% Co added VC and . The direct reduction and carburization of the mixed powders were carried at for 1 to 3 hours under flowing Ar gas. The mean size of WC particles in WC/Co composite powders was about 16 nm. The resultant powders were compacted and sintered at for 0.5 hour. After sintering the mean size of WC particles was about 50 nm.
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