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International Journal of Thermophysics

, Volume 3, Issue 1, pp 89–99 | Cite as

Radiance temperature (at 653 nm) of tungsten at its melting point

  • A. Cezairliyan
  • A. P. Miiller
Article

Abstract

The radiance temperature (at 653 nm) of tungsten at its melting point was measured using a subsecond-duration pulse-heating technique. Specimens in the form of strips with initially different surface roughnesses were used. The results do not indicate any dependence of radiance temperature (at the melting point) on initial surface or system operational conditions. The average radiance temperature (at 653 nm) at the melting point for 23 tungsten specimens is 3208 K on IPTS-68, with a standard deviation of 0.8 K and a maximum absolute deviation of 1.9 K. The total error in the radiance temperature is estimated to be not more than ± 10 K.

Key words

Melting normal spectral emittance pulse heating radiance temperature tungsten 

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Copyright information

© Plenum Publishing Corporation 1982

Authors and Affiliations

  • A. Cezairliyan
    • 1
  • A. P. Miiller
    • 1
  1. 1.Thermophysics DivisionNational Bureau of StandardsWashington, D.C.USA

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