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Fabrication of nanopowder and consolidation of nanocrystalline 5Ni0.6Fe0.4-Al2O3 composite by rapid sintering

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Abstract

Nano-powders of 5Ni0.6Fe0.4 and Al2O3 were synthesized from 3NiO and 2FeAl powders by high energy ball milling. Nanocrystalline 5Ni0.6Fe0.4-Al2O3 composite was consolidated by pulsed current activated sintering method within 2 min from mechanically alloyed powders of Al2O3 and 5Ni0.6Fe0.4. The average hardness and fracture toughness values obtained were 990 kg/mm2 and 7.5 MPa·m1/2, respectively.

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Authors and Affiliations

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

    Na-Ra Park, Myeong-Ku Choe & In-Jin Shon

  2. Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources, Daejeon, 305-350, Korea

    Je-Shin Park & Wonbaek Kim

  3. Department of Hydrogen and Fuel Cells Engineering, Specialized Graduate School, Chonbuk National University, Cheonbuk, 561-756, Korea

    In-Jin Shon

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  1. Na-Ra Park
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  2. Myeong-Ku Choe
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  3. Je-Shin Park
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  4. Wonbaek Kim
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  5. In-Jin Shon
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Correspondence to In-Jin Shon.

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Park, NR., Choe, MK., Park, JS. et al. Fabrication of nanopowder and consolidation of nanocrystalline 5Ni0.6Fe0.4-Al2O3 composite by rapid sintering. Met. Mater. Int. 15, 765–769 (2009). https://doi.org/10.1007/s12540-009-0765-x

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  • DOI: https://doi.org/10.1007/s12540-009-0765-x

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