Some Thermal and Electrical Properties of Candelilla Wax

Details Some Thermal and Electrical Properties of Candelilla Wax Some Thermal and Electrical Properties of Candelilla Wax

2002-09-13

arxiv.org/abs/cond-mat/0209328v1

J. Phys.: Condens. Matter 14, 9725 (2002).

Physics

Condensed Matter

Materials Science

7 pages, 6 figures

Scientific paper

10.1088/0953-8984/14/41/327

We report the values of some thermal and electrical properties of Candelilla Wax (euphorbia cerifera). The open-cell photoacoustic technique and another photothermic technique - based on the measure of the temperature decay of a heated sample - were employed to obtain the thermal diffusivity ($\alpha_{s} = 0.026 \pm 0.00095 {cm}^{2}{/sec}$) as well as the thermal conductivity ($k=2.132 \pm 0.16 {W/mK}$) of this wax. The Kelvin null method was used to measure the dark decay of the surface potential of the sample after a Corona Discharge, obtaining a resistivity of $\rho_e=5.98 \pm 0.19 \times 10^{17} {ohm-cm}$.

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