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Thermophysical properties of solid phase palladium over a wide temperature range

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Published/Copyright: August 22, 2013

Abstract

This paper presents experimental results of a range of thermophysical properties of pure polycrystalline palladium samples over a wide temperature range. Specific heat capacity was measured from 250 to 1 770 K, specific electrical resistivity from 250 to 1 800 K, hemispherical total emissivity from 1 100 to 1 800 K, normal spectral emissivity from 1 340 to 1 720 K, and thermal diffusivity in the range from 200 to 1 540 K. From the measured data, the thermal conductivity and Lorentz function were computed in the range from 250 to 1 540 K. Specific heat capacity, electrical resistivity, and both emissivities were measured by means of subsecond pulse calorimetry, while the thermal diffusivity was obtained using the laser flash technique. The first method used specimens in the form of a thin rod, of about 2 mm in diameter and 200 mm in length, and the second disk specimens of about 3 mm in thickness and 10 mm in diameter. For necessary corrections, literature data on thermal linear expansion have been used. All the results are compared with available literature data and discussed.


* Correspondence address, Dr. Nenad Milošević P.O. Box 522, 11001 Belgrade, Serbia, Tel.: +381 11 80 66 609, Fax: +381 11 24 53 670, E-mail:

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Received: 2012-7-5
Accepted: 2012-8-27
Published Online: 2013-08-22
Published in Print: 2013-05-10

© 2013, Carl Hanser Verlag, München

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