A new dynamic method is described for measuring the spectral directional-hemispherical reflectivity in the spectral range 0.4–1.1 μm near high-temperature phase transformations of refractory materials. The use of diffuse sample irradiation enables one to exclude the influence of an abrupt variation of the angular reflection distribution of sample surface at the phase transitions. The experimental results on samarium oxide showed that light pulses are emitted by the sample during the high-temperature transformations.
This is a preview of subscription content, log in to check access.
Buy single article
Instant access to the full article PDF.
Price includes VAT for USA
Subscribe to journal
Immediate online access to all issues from 2019. Subscription will auto renew annually.
This is the net price. Taxes to be calculated in checkout.
M. M. Gurevich,Photometriya, Teoriya, metodu, i priboru (Leningrad, 1983), pp. 217–229.
F. J. J. Clarke and J. A. Larkin,High Temp. High Press. 17:89 (1985).
R. Siegel and J. R. Howell,Thermal Radiation Heat Transfer (McGraw-Hill, New York, 1972), Chap. 3.
J. C. Richmond,High Temp. High Pressures 11:355 (1979).
L. N. Latyev, V. Ya. Chekovskoi, and E. N. Shestakov,High Temp. High Press. 2:175 (1970).
K. L. Eckerle, W. H. Venable, Jr., and V. R. Weidner,J. Appl. Opt. 15:703 (1976).
M. Foex and J. P. Traverse,Rev. Int. Hautes Temp. Refract. 3:429 (1966).
About this article
Cite this article
Salikhov, T.P., Kan, V.V. Subsecond measurements of the optical properties in the spectral range 0.4–1.1 μm near high-temperature transformations of samarium oxide. Int J Thermophys 14, 555–564 (1993). https://doi.org/10.1007/BF00566052
- optical properties
- phase transformation
- polychromatic diffuse irradiation
- reciprocity principle
- samarium oxide
- spectral reflectance
- transformation temperature