DSpace at KIST: Mechanical synthesis and rapid consolidation of a nanocrystalline 3.3Fe(0.6)Cr(0.3)Al(0.1)-Al2O3 composite by high frequency induction heating

Mechanical synthesis and rapid consolidation of a nanocrystalline 3.3Fe(0.6)Cr(0.3)Al(0.1)-Al2O3 composite by high frequency induction heating

Authors: Shon, In-Jin; Kim, Tae-Wan; Doh, Jung-Mann; Yoon, Jin-Kook; Park, Sang-Whan; Ko, In-Yong

Abstract: Nanopowders of 3.3Fe(0.6)Cr(0.3)Al(0.1) and Al2O3 were synthesized from Fe2O3, Cr, and Al powders by high-energy ball milling. A high density nanocrystalline 3.3Fe(0.6)Cr(0.3)Al(0.1)-Al2O3 composite was consolidated by a high frequency induction heated sintering (HFIHS) method within 3 min from mechanically synthesized powders of Al2O3 and 3.3Fe(0.6)Cr(0.3)Al(0.1). The average grain sizes of Al2O3 and 3.3Fe(0.6)Cr(0.3)Al(0.1) were 84 and 32 nm, respectively. (C) 2010 Elsevier B.V All rights reserved.

Keywords: IRON ALUMINIDES; POWDERS; WC; IRON ALUMINIDES; POWDERS; WC; Nanostructured materials; Sintering; Mechanical alloying; Mechanical properties; Composite materials

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