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Properties and rapid low-temperature consolidation of nanocrystalline Fe-ZrO2 composite by pulsed current activated sintering

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Abstract

Nanopowders of Fe and ZrO2 were synthesized from Fe2O3 and Zr by high-energy ball milling. The powder sizes of Fe and ZrO2 were 70 nm and 12 nm, respectively. Highly dense nanostructured 4/3Fe-ZrO2 composite was consolidated by a pulsed current activated sintering method within 1 minute from the mechanically synthesized powders (Fe-ZrO2) and horizontal milled Fe2O3+Zr powders under the 1 GPa pressure. The grain sizes of Fe and ZrO2 in the composite were calculated. The average hardness and fracture toughness values of nanostuctured 4/3Fe-ZrO2 composite were investigated.

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Authors and Affiliations

  1. Division of Advanced Materials Engineering, the Research Center of Advanced Materials Development, Chonbuk National University, 664-14 Deokjin-dong 1-ga, Deokjin-gu, Jeonju-si, Jeonbuk, 561-756, Korea

    Hyun-Su Kang, In-Yong Ko & In-Jin Shon

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

    Jin-Kook Yoon, Jung-Mann Doh & Kyung-Tae Hong

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

    In-Jin Shon

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  1. Hyun-Su Kang
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  2. In-Yong Ko
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  3. Jin-Kook Yoon
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  4. Jung-Mann Doh
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  5. Kyung-Tae Hong
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  6. In-Jin Shon
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Correspondence to In-Jin Shon.

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Kang, HS., Ko, IY., Yoon, JK. et al. Properties and rapid low-temperature consolidation of nanocrystalline Fe-ZrO2 composite by pulsed current activated sintering. Met. Mater. Int. 17, 57–62 (2011). https://doi.org/10.1007/s12540-011-0208-y

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  • DOI: https://doi.org/10.1007/s12540-011-0208-y

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