Abstract
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 °C, under 75 MPa pressure for 7.5 min. Under these conditions, cBN → hBN phase transformation was not observed.
| Original language | English |
|---|---|
| Pages (from-to) | 1041-1043 |
| Number of pages | 3 |
| Journal | Materials Letters |
| Volume | 63 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 15 May 2009 |
| Externally published | Yes |
Keywords
- Spark plasma sintering
- Tungsten carbide
- WC-6Co-cBN composites