Oriented mosaic model analysis of anisotropic thermoelectric properties of heterogeneous materials |
| |
Authors: | Hideo Wada Yoichi Okamoto Toru Miyakawa Taizo Irie |
| |
Affiliation: | (1) Corporate Research and Development Centre of Mitsui Mining and Smelting Co. Ltd, 1333-2, Haraichi, 362 Ageo-shi, Saitama, Japan;(2) Department of Materials Science and Engineering, The National Defense Academy, Yokosuka, 239 Kanagawa, Japan;(3) Department of Electrical Engineering, Science University of Tokyo, Kagurazaka, 62 Shinjuku Tokyo, Japan |
| |
Abstract: | Thermoelectric properties of heterogeneous materials are discussed in terms of a randomly oriented rectangular plate-like mosaic of anisotropic crystalline grains embedded in a homogeneous host material. Anisotropies in effective thermoelectric parameters and the values of thermoelectric parameters can be related to the mean orientation of the plate-like grains which, in turn, can be related to the orientation factor of Lotgering. They are also functions of various parameters such as dimension ratios , ![agr](/content/m960r1721m35202k/xxlarge945.gif) and ![agr](/content/m960r1721m35202k/xxlarge945.gif) of electrical resistivities, thermal conductivities, and the Seebeck coefficient, respectively, of grains to those of host medium. Use of f-dependent anisotropies in conjunction with relative magnitudes of electrical and thermal conductivities as well as of the Seebeck coefficient, allows , ![agr](/content/m960r1721m35202k/xxlarge945.gif) and ![agr](/content/m960r1721m35202k/xxlarge945.gif) to be estimated, which characterize the intergranular medium. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|