Journal
MATERIALS LETTERS
Volume 63, Issue 12, Pages 1041-1043Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2009.01.086
Keywords
Tungsten carbide; WC-6Co-cBN composites; Spark plasma sintering
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25 vol.% cubic boron nitride (cBN) added tungsten carbide (WC) powders containing 6 wt.% Co (WC-6Co) were densified by spark plasma sintering (SPS) technique under different experimental conditions and the effect of cBN addition on the microstructure, mechanical properties and thermal conductivity were investigated. Over 99.5% theoretical density was achieved for WC-6Co-cBN composites sintered at 1300 degrees C. under 75 MPa pressure for 7.5 min. Under these conditions, cBN -> hBN phase transformation was not observed. (C) 2009 Elsevier B.V. All rights reserved.
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