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Thermal conductivity of beryllium oxide ceramic

Prospects are discussed for the use of BeO-ceramic in electronic and other fields of technology and special instrument building. With use of BeO-ceramic in electronic technology one of the main parameters is its high thermal conductivity. Analysis of publications shows that BeO-ceramic in the range 300 – 500 K exhibits the highest thermal conductivity among all ceramic materials used in electronic technology. Results are provided for a study of the thermal conductivity of 170 ceramic specimens made from BeO-ceramic with an identical configuration and dimensions prepared from one batch of BeO starting powder. It is established that the average size of microcrystals and the density of specimens have a defining effect on thermal conductivity.

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Translated from Novye Ogneupory, No. 12 pp. 43 – 47, December 2009.

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Akishin, G.P., Turnaev, S.K., Vaispapir, V.Y. et al. Thermal conductivity of beryllium oxide ceramic. Refract Ind Ceram 50, 465–468 (2009).

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  • BeO-ceramic
  • thermal conductivity
  • BeO powder
  • average grain size
  • density
  • specimen porosity
  • impurity phase
  • physicochemical properties