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Properties and consolidation of nanocrystalline 3Cu–Al2O3 composite by rapid sintering

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Abstract

Nanopowders of Cu and Al2O3 were synthesized from 3CuO and 2Al powders by high-energy ball milling. Nanocrystalline Al2O3 reinforced composite was consolidated by pulsed-current activated sintering method within 2 min from mechanically synthesized powders of Al2O3 and Cu. The relative density of the composite was 96%. The average hardness and fracture toughness values obtained were 540 kg/mm2 and 6.3 MPa m1/2, respectively.

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Acknowledgments

We are grateful for the financial support from the Korea Institute of Science and Technology, which was provided through the program for study on Development of Surface Treatment for Light Metals.

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Authors and Affiliations

  1. Division of Advanced Materials Engineering, Research Center of Advanced Materials Development, Engineering College, Chonbuk National University, Chonbuk, 561-756, Republic of Korea

    In-Yong Ko, Na-Ri Kim, Jin-Yeoung Lee, Na-Ra Park & In-Jin Shon

  2. Advanced Functional Materials Research Center, Korea Institute of Science and Technology, PO Box 131, Cheongryang, Seoul, 130-650, Republic of Korea

    Jung-Mann Doh

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  1. In-Yong Ko
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  2. Na-Ri Kim
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  3. Jin-Yeoung Lee
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  6. In-Jin Shon
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Correspondence to In-Jin Shon.

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Ko, IY., Kim, NR., Lee, JY. et al. Properties and consolidation of nanocrystalline 3Cu–Al2O3 composite by rapid sintering. Res Chem Intermed 36, 775–784 (2010). https://doi.org/10.1007/s11164-010-0181-y

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  • DOI: https://doi.org/10.1007/s11164-010-0181-y

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