Textured Ca3Co4O9 thermoelectric oxides by thermoforging process -: art. no. 093706

被引：87

作者：

Prevel, M

Lemonnier, S

Klein, Y

Hébert, S

Chateigner, D

Ouladdiaf, B

Noudem, JG

机构：

[1] CNRS, UMR 6508, CRISMAT, ENSICAEN, F-14050 Caen, France

[2] ILL Grenoble, F-38042 Grenoble, France

来源：

JOURNAL OF APPLIED PHYSICS | 2005年 / 98卷 / 09期

关键词：

D O I：

10.1063/1.2120892

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Using thermoforging process, dense Ca3Co4O9 (Co349) thermoelectric oxides have been successfully textured. The various parameters influencing the formation of the Co349-textured material have been investigated. The electrical transport measurements show an anisotropy of the resistivity in good agreement with scanning electron microscopy observations. Texture is quantified by neutron-diffraction measurements and correlated to anisotropic resistivity measurements and Seebeck coefficients. (c) 2005 American Institute of Physics.

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