Simultaneous synthesis and consolidation of nanostructured TaSi2-Si3N4 composite by pulsed current activated combustion

Title
Simultaneous synthesis and consolidation of nanostructured TaSi2-Si3N4 composite by pulsed current activated combustion
Authors
박현국박정환윤진국고인용도정만손인진
Keywords
Pulsed current activated combustion; Intermetallics; Nanophase; TaSi2-Si3N4
Issue Date
2009-01
Publisher
Ceramics international
Citation
VOL 35, 99-104
Abstract
Dense nanostructured 4TaSi2–Si3N4 composite was synthesized by pulsed current activated combustion synthesis (PCACS) method within 3 min in one step from mechanically activated powders of TaN and Si. Simultaneous combustion synthesis and densification were accomplished under the combined effects of a pulsed current and mechanical pressure. Highly dense 4TaSi2–Si3N4 composite with relative density of up to 98% was produced under simultaneous application of a 60 MPa pressure and the pulsed current. The average grain size and mechanical properties (hardness and fracture toughness) of the composite were investigated.
URI
http://pubs.kist.re.kr/handle/201004/34326
ISSN
0272-8842
Appears in Collections:
KIST Publication > Article
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