Thermal Conductivity of Polycrystalline Cubic Boron Nitride Compacts

  • F. R. Corrigan


Slack [1] predicts a room temperature thermal conductivity of about 13 W/cm°C for single-crystal cubic boron nitride with only diamond having a higher conductivity among the high thermal conductivity adamantine Compounds. However, no crystals of cubic BN were available that were large enough to measure the thermal conductivity, and the highest value reported for polycrystalline compacts prepared by high-pressure/high-temperature sintering of natural isotope abundance cubic BN powder was only 1.8 W/cm°C. In this paper, natural isotope abundance polycrystalline cubic BN compacts prepared by direct high-pressure/high-temperature conversion of graphitic BN and having room temperature thermal conductivity values up to a factor of four higher than previously reported are discussed.


Crystallite Size Boron Nitride General Electric Company Thermal Diffusivity Measurement Natural Isotope Abundance 


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  1. 1.
    G. A. Slack, J. Phys. Chem. Solids 34, 321 (1973).CrossRefGoogle Scholar
  2. 2.
    W. J. Parker, R. J. Jenkins, C. P. Butler, and G. L. Abbott, J. Appl. Phys. 32, 1679 (1961).CrossRefGoogle Scholar
  3. 3.
    R. E. Taylor and L. M. Clark III, High Temp.-High Press. 6, 65 (1974).Google Scholar
  4. 4.
    Y. S. Touloukian and E. H. Buyco, eds., Specific Heat - Non-metallic Solids, Vol. 5, Thermophysical Properties of Matter, TPRC Data Series, Purdue University, West Lafayette, Indiana (1970), p. 1078.Google Scholar
  5. 5.
    N. N. Sirota and N. A. Kofman, Sov. Phys. Dokl. 21, 516 (1976).Google Scholar
  6. 6.
    H. M. Strong, R. E. Tuft, and R. E. Hanneman, Metallurgical Trans. 4, 2657 (1973).CrossRefGoogle Scholar
  7. 7.
    B. D. Cullity, Elements of X-ray Diffraction, Addison-Wesley, Reading, Massachusetts (1959), p. 261.Google Scholar
  8. 8.
    Y. S. Touloukian, ed., Thermophysical Properties of Matter, Vol. 3, TPRC Data Series, Purdue University, West Lafayette, Indiana (1966), Table 1007R.Google Scholar
  9. 9.
    R. M. Chrenko and H. M. Strong, Rept. No. 75CRD089, General Electric Company, Research & Development Center, Schenectady, New York (1975).Google Scholar
  10. 10.
    R. Berman, Thermal Conduction in Solids, Clarendon Press, Oxford, England (1976), p. 13.Google Scholar

Copyright information

© Springer Science+Business Media New York 1979

Authors and Affiliations

  • F. R. Corrigan
    • 1
  1. 1.General Electric CompanyWorthingtonUSA

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