Simultaneous Synthesis and Rapid Consolidation of Nanocrystalline 3TiAl-Al2O3 Composites by Pulsed Current Activated Heating

Title
Simultaneous Synthesis and Rapid Consolidation of Nanocrystalline 3TiAl-Al2O3 Composites by Pulsed Current Activated Heating
Authors
윤진국손인진홍경태
Keywords
Sintering; Composite; Nanophase; Mechanical properties; Synthesis
Issue Date
2017-06
Publisher
Journal of nanoscience and nanotechnology
Citation
VOL 17, NO 6-3937
Abstract
Nano-powders of Al and TiO were fabricated by high energy ball milling. Nanocrystalline 3TiAl-Al2O3 composite was simultaneously synthesized and consolidated by pulsed current activated sintering within 2 minutes from mechanically milled powders of 3TiO and 5Al. Both hardness and fracture toughness of 3TiAl-Al2O3 composites were higher than that of monolithic TiAl due to addition of hard phase of Al2O3 and crack deflection by Al2O3.
URI
http://pubs.kist.re.kr/handle/201004/66697
ISSN
1533-4880
Appears in Collections:
KIST Publication > Article
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