A New Approach to the Reaction Sintering of Superhard Materials Under Very High Pressure

  • Minoru Akaishi
  • Tadashi Endo
  • Osamu Fukunaga
  • Yoichiro Sato
  • Nobuo Setaka
Part of the Materials Science Research book series (MSR, volume 17)


The polycrystalline diamond, cubic boron nitride and cubic boron nitride-diamond with homogeneous microstructure and strong direct bonding were obtained by the reaction sintering of diamond-graphite/WC-Co, cBN-hBN/Mg3B2N4 and cBN-graphite/WC-Co systems. In these systems, sintering proceeded via transformation from graphite to diamond structure. The sintering process of these systems was discussed based on the observation by SEM, EPMA, X-ray diffraction, Raman spectroscopy, micro-Vickers hardness test and scanning Auger spectroscopy.


Boron Nitride Superhard Material Diamond Particle Direct Bonding Auger Spectrum 
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Copyright information

© Plenum Press, New York 1984

Authors and Affiliations

  • Minoru Akaishi
    • 1
  • Tadashi Endo
    • 1
  • Osamu Fukunaga
    • 1
  • Yoichiro Sato
    • 1
  • Nobuo Setaka
    • 1
  1. 1.National Institute for Research in Inorganic MaterialsSakura-mura, Niihari-gun, Ibaraki 305Japan

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