Spark plasma sintering of Co-WC cubic boron nitride composites

YAMAN ISLAK B., MANDAL H.

MATERIALS LETTERS, cilt.63, sa.12, ss.1041-1043, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 63 Sayı: 12
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1016/j.matlet.2009.01.086
  • Dergi Adı: MATERIALS LETTERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1041-1043
  • Anahtar Kelimeler: Tungsten carbide, WC-6Co-cBN composites, Spark plasma sintering, MECHANICAL-PROPERTIES, HARD MATERIALS, MICROSTRUCTURE, NANOCOMPOSITES, CARBIDE
  • Anadolu Üniversitesi Adresli: Evet

Özet

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.