Affiliation:
1. CSIRO Division of Applied Physics, P.O. Box 218, Lindfield NSW 2070, Australia
Abstract
A novel experimental technique for the measurement of spectral emissivities in the temperature range 500 to 1000°C of materials that are both poorly thermally conducting and have a high level of transparency is presented. A Fourier transform infrared spectrometer (FT-IR) is used to compare the spectral radiance from a nearly isothermal, but rapidly cooling, sample to that of a reference blackbody. Experimental results obtained from metal metaborate samples and a theoretical analysis of the technique show the effectiveness of this method, particularly for the case of molten samples.
Subject
Spectroscopy,Instrumentation
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21 articles.
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