Consolidation of binderless nanostructrued TiC by pulsed current activated sintering and its mechanical properties

Title
Consolidation of binderless nanostructrued TiC by pulsed current activated sintering and its mechanical properties
Authors
손인진김병량고인용도정만윤진국
Keywords
Sintering; Mechanical properties; TiC; Nanostructured material
Issue Date
2011-02
Publisher
Journal of nanoscience and nanotechnology
Citation
VOL 11, NO 2, 1489-1492
Abstract
Using the rapid sintering method, PCAS, the densification of binderless TiC was accomplished using high energy ball milled powders. Consolidation temperature decreased with milling time because driving force for sintering and contact points of powders for atomic diffusion increased. The average grain sizes of the TiC were about 860, 203, 117 and 70 nm for the samples with milling times of 0, 1, 4, and 10 h and their corresponding densities were approximately 89, 95, 96 and 98%, respectively. The Vickers hardnesses of the TiC with ball milling for 1, 4 and 10 h were 1460 kg/mm2, 1620 kg/mm2 and 2490 kg/mm2, and their fracture toughnesses were 7.5 MPa ·m1/2, 6.9 MPa ·m1/2 and 6.5 MPa ·m1/2, respectively.
URI
http://pubs.kist.re.kr/handle/201004/39356
ISSN
1533-4880
Appears in Collections:
KIST Publication > Article
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