Advertisement

Journal of Materials Science

, Volume 25, Issue 9, pp 4150–4156 | Cite as

Sintering behaviour of the diamond-super invar alloy system at high temperature and pressure

  • Shang-Jie Li
  • Minoru Akaishi
  • Toshikazu Ohsawa
  • Shinobu Yamaoka
Papers

Abstract

In the diamond-super invar alloy system, effect of the grain size of the starting diamond powder on the sintering behaviour was investigated at 5.8 G Pa and 1300 to 1500 ° C for 30 to 60 min. Abnormal grain growth was often observed in the sintered diamond using fine diamond powder, but a homogeneous sintered diamond was easily synthesized using 5 to 10μm diamond. By the rigorous control of sintering conditions, a 3μm grain size homogeneous sintered diamond was synthesized under conditions of 5.8 G Pa and 1350 ° C for 30 min. The Vickers hardness and thermal resistance of the fine grained sintered diamond was examined.

Keywords

Polymer Grain Size Thermal Resistance Alloy System Vickers Hardness 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    R. H. Wentorf Jr andW. A. Rocco, US Pat. 3745623, 17 July 1973.Google Scholar
  2. 2.
    Idem, US Pat. 3767371, 23 October 1973.Google Scholar
  3. 3.
    R. H. Wentorf Jr, R. C. Devries andF. P. Bundy,Science 208 (1980) 873.Google Scholar
  4. 4.
    P. D. Gigl, “Strength of polycrystalline diamond compacts”, edited by K. D. Timmerhaus and M. S. Barber “High Pressure Science and Technology”, Vol. 1 (Plenum, New York, 1979) pp. 914–22.Google Scholar
  5. 5.
    M. Akaishi, T. Ohsawa, S. Yamaoka andO. Fukunaga, Thermal property of the sintered diamond with small amount of metal, First International Conference on the New Diamond Science and Technology, 24–26 October 1988, Tokyo, Japan. To be published.Google Scholar
  6. 6.
    M. Akaishi, H. Kanda, Y. Satoh, N. Setaka, T. Ohsawa andO. Fukunaga,J. Mater. Sci. 17 (1982) 193.Google Scholar
  7. 7.
    H. M. Strong andR. E. Tuft, Rep. no. 74CRD118, Technical Information Series, G. E. Research and Development, New York, 1974.Google Scholar
  8. 8.
    S. M. Hong, M. Akaishi, H. Kanda, T. Ohsawa, S. Yamaoka andO. Fukunaga,J. Mater. Sci. 23 (1988) 3821.Google Scholar

Copyright information

© Chapman and Hall Ltd. 1990

Authors and Affiliations

  • Shang-Jie Li
    • 1
  • Minoru Akaishi
    • 1
  • Toshikazu Ohsawa
    • 1
  • Shinobu Yamaoka
    • 1
  1. 1.National Institute for Research in Inorganic MaterialsIbarakiJapan

Personalised recommendations