Low-temperature emissivities of copper and aluminum

Estalote, Edward A. ; Ramanathan, K. G. (1977) Low-temperature emissivities of copper and aluminum Journal of the Optical Society of America, 67 (1). pp. 39-43. ISSN 0030-3941

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Official URL: http://www.opticsinfobase.org/josa/abstract.cfm?UR...

Related URL: http://dx.doi.org/10.1364/JOSA.67.000039


A transient calorimetric technique for measuring the total hemispherical emissivities εh of metals, in the temperature range 140-300°K, has been developed. Using this technique, continuous εh versus temperature data have been obtained for pure samples of Cu and Al, with a precision of about 5%. These results are compared with those of previous investigators and with the theory of Davisson and Weeks.

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