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THERMAL CONDUCTIVITY OF METALLIC WIRES |
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| Authors: | Lü Xiang Gu Ji-hua Chu Jun-hao |
| Institution: | National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Science, Shanghai 200083, China; Department of Physics, Suzhou University, Suzhou 215006, China |
| Abstract: | The effect of radial thickness on the thermal conductivity of a free standing wire is investigated. The thermal conductivity is evaluated using the Boltzmann equation. A simple expression for the reduction in conductivity due to the increase of boundary scattering is presented. A comparison is made between the experimental results of indium wires and the theoretical calculations. It is shown that this decrease of conductivity in wires is smaller than that in film where heat flux is perpendicular to the surface. |
| Keywords: | thermal conductivity boundary scattering |
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