Title: Binderless WC and WC-VC materials obtained by pulsed electric current sintering
Authors: Huang, Shuigen ×
Vanmeensel, Kim
Van der Biest, Omer
Vleugels, Jef #
Issue Date: 2008
Publisher: MPR Pub. Services
Series Title: International Journal of Refractory Metals & Hard Materials vol:26 issue:1 pages:41-47
Abstract: WC and WC VC materials without metallic binder addition were densified by pulsed electric current sintering (PECS) in the 1600-1900 degrees C range. The clensification mechanism, microstructure and mechanical properties of the pure WC and VC-doped WC carbides were investigated. The densification of WC-VC materials was accompanied with the formation of a cubic (V,W)C solid solution. Although no abnormal WC grain growth was observed, the (V,W)C grains were observed to grow rapidly with increasing VC content. A maximum Vickers hardness (HV10) of 27.39 GPa in combination with an indentation toughness of 4.38 MPa m(1/2) was obtained for the PECS pure and 1 wt% VC doped WC grades. The hardness was found to linearly decrease down to 21.41 GPa with further addition of VC up to 16 wt%, with a slightly decreased fracture toughness. (C) 2007 Elsevier Ltd. All rights reserved.
ISSN: 0263-4368
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Physical Metallurgy and Materials Engineering Section (-)
Department of Materials Engineering - miscellaneous
× corresponding author
# (joint) last author

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