Preparation of the crack-free single phase (Zn1-xCdx)13Sb10 by a gradient freeze method and their structural and thermoelectric properties

被引：3

作者：

Nakamoto, Go ^{[1
]}

Tajima, Yasuhiro ^{[1
]}

Kurisu, Makio ^{[1
]}

机构：

[1] Japan Adv Inst Sci & Technol, Sch Mat Sci, Nomi, Ishikawa 9231292, Japan

来源：

INTERMETALLICS | 2012年 / 23卷

关键词：

Intermetallics; miscellaneous; Thermoelectric properties; Crystal growth; PHONON-GLASS; MATERIAL BETA-ZN4SB3; ZN4SB3; TEMPERATURE; ZINC; ALPHA-ZN4SB3; TRANSITIONS;

D O I：

10.1016/j.intermet.2011.11.021

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Structural and thermoelectric properties have been investigated for (Zn1-xCdx)(13)Sb-10 compounds prepared by a gradient freeze method. The crack-free single phase of the (Zn1-xCdx)(13)Sb-10 was obtained with the starting Cd composition up to x = 0.4. The large distribution of the chemical composition has been elucidated along the growth direction in the ingots prepared; Cd is poor in the lower part of the ingots, while the chemical composition is nearly the same as the starting one in the upper part. The lattice constants increase with increasing Cd content. The Seebeck coefficient and electrical resistivity are enhanced, whereas the thermal conductivity is strongly decreased by 20% by the Cd substitution, leading to the enhancement of the dimensionless figure of merit by 10% at x = 0.30 at 340 K. (C) 2011 Elsevier Ltd. All rights reserved.

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页码：163 / 168

页数：6