Article

International Journal of Thermophysics

, Volume 23, Issue 5, pp 1185-1195

High-Temperature Properties of Liquid Boron from Contactless Techniques

  • F. MillotAffiliated withCRMHT/CNRS
  • , J. C. RiffletAffiliated withCRMHT/CNRS
  • , V. Sarou-KanianAffiliated withCRMHT/CNRS
  • , G. WilleAffiliated withCRMHT/CNRS

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Abstract

The density, surface tension, and spectral and total hemispherical emissivities of liquid boron obtained with contactless diagnostics are reported for temperatures between 2360 and 3100 K. It is shown that, contrary to previous expectations, liquid boron is denser than the solid at its melting point. It is also shown that the high total emissivity of 0.36 is not consistent with that of a liquid metal as recently claimed. Finally, good agreement is found with previously reported surface tensions and spectral emissivities of liquid boron.

density emissivity high temperature levitation liquid boron surface tension