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한국분말야금학회 2006년도 춘계학술대회논문집 (2006.04)
pp.640-641
pp.640-641
한국분말재료학회(구 한국분말야금학회)
(Korean Powder Metallurgy Institute)
초록
To improve the mechanical properties of WC-Co cemented carbides, the dual composite was studied. The compositions of granule and matrix were nano-sized WC-6 wt% Co(granule) and normal sized WC-20 wt% Co(matrix), respectively. The granules were grouped 50, 100 and and mixed with WC and Co powders as the volume fractions of granule to matrix were 50 to 50, 40 to 60 and 30 to 70. These compacts were sintered at for 10 minutes in vacuum. The microstructure, transverse rupture strength and wear resistance were investigated.
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