Spark plasma sintering of Co-WC cubic boron nitride composites

作者：Yaman Bilge^*; Mandal Hasan

来源：Materials Letters, 2009, 63(12): 1041-1043.

DOI：10.1016/j.matlet.2009.01.086

• Tungsten carbide
• WC-6Co-cBN composites
• Spark plasma sintering

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.

• 出版日期2009-5-15