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Synthesization of WC/Co Composite Powders Doped V and Cr by Mechanochemical Method
Im, Hoo-Soon, Hur, Jah-Mahn, Lee, Wan-Jae
- 언어KOR
- URLhttps://db.koreascholar.com/Article/Detail/3960
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.
키워드
mechanochemical methodnano-sized WCWC/Co composite powderdirect reduction and carburizationsintering
저자
