Abstract

Spectral emissive power of Acheson graphite at 0.660μ. — The spectral emissive power of Acheson graphite for the wave-length 0.660μ has been determined for the temperature range from 1250°K to 2700°K. The observations were made on a small tubular graphite resistance furnace with a hole in the wall and are best summarized by the relation: e=0.984-5.8×10^-5T. Measurements of the temperature distribution along the furnace afford determinations of the ratio of resistivity to thermal conductivity at three temperatures.

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