발간논문

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Vol.49, No.9, 715 ~ 720, 2011
Title
Rapid Sintering and Synthesis of a Nanocrystalline Fe-Si3N4 Composites by High-Frequency Induction Heating
고인용 In Yong Ko , 두송이 Song Lee Du , 도정만 Jung Mann Doh , 윤진국 Jin Kook Yoon , 박상환 Sang Whan Park , 손인진 In Jin Shon
Abstract
Nanopowders of Fe3N and Si were fabricated by high-energy ball milling. A dense nanostructured 12Fe-Si3N4 composite was simultaneously synthesized and consolidated using a high-frequency induction-heated sintering method for 2 minutes or less from mechanically activated powders of Fe3N and Si. Highly dense 12Fe-Si3N4 with a relative density of up to 99% was produced under simultaneous application of 80 MPa pressure and the induced current. The microstructure and mechanical properties of the composite were investigated.
Key Words
Fe-Si3N4, rapid sintering, hardness, fracture toughness
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