Properties of nanostructured tungsten carbide and their rapid consolidation by pulsed current activated sintering

Title
Properties of nanostructured tungsten carbide and their rapid consolidation by pulsed current activated sintering
Authors
손인진김병량도정만윤진국우기도
Keywords
Nanoscale science and low-D systems
Issue Date
2010-05
Publisher
Physica scripta
Citation
VOL 2010, NO T139, 014043-1-014043-4
Abstract
Highly dense nanostructured WC with a relative density of up to 99% was obtained within 2 min by pulsed current activated sintering (PCAS) under a pressure of 80MPa. The relative density of WC increased to 99% and the average grain size of WC decreased to 54 nm with milling time. The hardness and fracture toughness of the dense WC produced by PCAS were 2620, 2489 and 2068 kg mm−2 and 8.5, 8.8 and 9.8MPa m1/2 with milling times of 10, 4 and 1 h, respectively.
URI
http://pubs.kist.re.kr/handle/201004/37456
ISSN
0031-8949
Appears in Collections:
KIST Publication > Article
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