Title: VC, Cr3C2 and NbC doped WC-Co cemented carbides prepared by pulsed electric current sintering
Authors: Huang, Shuigen ×
Li, Lin
Vanmeensel, Kim
Van der Biest, Omer
Vleugels, Jef #
Issue Date: 2007
Publisher: Elsevier sci ltd
Series Title: International journal of refractory metals & hard materials vol:25 issue:5-6 pages:417-422
Abstract: WC-12 wt.% Co grade cemented carbides doped with 0.9 wt.% VC, NbC or Cr3C2 grain growth inhibitor were consolidated by pulsed electric current sintering (PECS), also known as spark plasma sintering (SPS), in the solid state at 1240 degrees C for 2 min. The microstructure and properties of the PECS material grades are compared with those of pressureless sintered grades, liquid phase sintered at 1420 degrees C for I h. Microstructural and hardness characterization revealed that both the chemical composition and sintering technique play an important role on the WC grain growth and final mechanical properties. To obtain a nanometer sized WC-Co microstructure, it is essential to carefully select the grain growth inhibitor in addition to the application of a fast thermal densification cycle by means of spark plasma sintering. (C) 2006 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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