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Mechanical synthesis and rapid consolidation of a nanocrystalline Cu-Al2O3 composite by high frequency induction heated sintering

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Abstract

Cu and Al2O3 nanopowders were synthesized from 3CuO and 2Al by high energy ball milling. The powder sizes of Cu and Al2O3 were 14 nm and 133 nm, respectively. A dense nanocrystalline 3Cu-Al2O3 composite was consolidated by a high frequency induction heated sintering method within 2 minutes from the mechanically synthesized powders. The average hardness and fracture toughness values of the nanostuctured 3Cu-Al2O3 composite were 520 kg/mm2 and 5 Mpa·m1/2, respectively.

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Correspondence to In-Jin Shon.

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Shon, IJ., Lee, JY., Nam, KS. et al. Mechanical synthesis and rapid consolidation of a nanocrystalline Cu-Al2O3 composite by high frequency induction heated sintering. Electron. Mater. Lett. 5, 77–81 (2009). https://doi.org/10.3365/eml.2009.06.077

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