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Consolidation of a nanostructured Al2O3 reinforced Fe-Cr composite by rapid sintering and its mechanical properties

Authors
Ko, In-Yong; Shon, In-Jin; Doh, Jung-Mann; Yoon, Jin-Kook; Park, Sang-Whan; Park, Na-Ra
Issue Date
2011-02
Publisher
KOREAN ASSOC CRYSTAL GROWTH, INC
Citation
JOURNAL OF CERAMIC PROCESSING RESEARCH, v.12, no.1, pp.70 - 73
Abstract
Nano-powders of Fe0.67Cr0.33 and Al2O3 were synthesized from CrO3 and 2FeAl powders by high energy ball milling. A highly dense nanocrystalline 3Fe(0.67)Cr(0.33)-Al2O3 composite was consolidated by a pulsed current activated sintering (PCAS) method within 2 minutes from mechanically synthesized powders of Al2O3 and Fe0.67Cr0.33. The average hardness and fracture toughness values obtained were 840 kg/mm(2) and 10 MPa.m(1/2), respectively.
Keywords
WC; WC; Nanosructured materials; Sintering; Mechanical alloying; Mechanical properties; Composite materials
ISSN
1229-9162
URI
https://pubs.kist.re.kr/handle/201004/130690
Appears in Collections:
KIST Article > 2011
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