THERMAL CONDUCTIVITY OF METALLIC WIRES

doi:10.1088/1009-1963/10/3/310

中国物理B ›› 2001, Vol. 10 ›› Issue (3): 223-228.doi: 10.1088/1009-1963/10/3/310

THERMAL CONDUCTIVITY OF METALLIC WIRES

顾济华¹, 褚君浩², 吕翔³

(1)Department of Physics, Suzhou University, Suzhou 215006, China; (2)National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Science, Shanghai 200083, China; (3)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

收稿日期:2000-03-14 修回日期:2000-11-03 出版日期:2001-03-15 发布日期:2005-06-12

THERMAL CONDUCTIVITY OF METALLIC WIRES

Lü Xiang (吕翔)^ab, Gu Ji-hua (顾济华)^b, Chu Jun-hao (褚君浩)^a

^a National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Science, Shanghai 200083, China; ^b Department of Physics, Suzhou University, Suzhou 215006, China

Received:2000-03-14 Revised:2000-11-03 Online:2001-03-15 Published:2005-06-12

摘要/Abstract

摘要： 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.

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.

Key words: thermal conductivity, boundary scattering

中图分类号: (Electrical and thermal conduction in crystalline metals and alloys)

72.15.Eb

05.60.-k (Transport processes)

吕翔, 顾济华, 褚君浩. THERMAL CONDUCTIVITY OF METALLIC WIRES[J]. 中国物理B, 2001, 10(3): 223-228.

Lü Xiang (吕翔), Gu Ji-hua (顾济华), Chu Jun-hao (褚君浩), . THERMAL CONDUCTIVITY OF METALLIC WIRES[J]. Chinese Physics, 2001, 10(3): 223-228.

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