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한국분말야금학회지
(Journal of Korean Powder Metallurgy Institute)
Vol. 13 No. 1 (2006.02)
pp.33-38
pp.33-38
한국분말재료학회(구 한국분말야금학회)
(Korean Powder Metallurgy Institute)
초록
The effect of Cu content on microstructure and mechanical properties of nano-sized Cu dispersed nanocomposites was investigated. The nanocomposites with Cu content of 2.5 to were prepared by reduction and hot-pressing of powder mixtures. The nanocomposites with Cu content of 2.5 and exhibited the maximum fracture strength of 820MPa and enhanced toughness compared with monolithic . The strengthening was mainly attributed to the refinement of matrix grains. The toughening mechanism was discussed by the observed microstructural feature based on crack bridging
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