High-temperature elastic moduli of thermoelectric SnTe1±x - y SiC nanoparticulate composites

被引：42

作者：

Schmidt, Robert D. ^{[1
]}

Case, Eldon D. ^{[1
]}

Ni, Jennifer E. ^{[1
]}

Trejo, Rosa M. ^{[2
]}

Lara-Curzio, Edgar ^{[2
]}

Korkosz, Rachel J. ^{[3
]}

Kanatzidis, Mercouri G. ^{[3
]}

机构：

[1] Michigan State Univ, E Lansing, MI 48824 USA

[2] Oak Ridge Natl Lab, High Temp Mat Lab, Oak Ridge, TN 37831 USA

[3] Northwestern Univ, Dept Chem, Evanston, IL 60201 USA

来源：

JOURNAL OF MATERIALS SCIENCE | 2013年 / 48卷 / 23期

关键词：

YOUNGS MODULUS; LEAD-TELLURIDE; POISSONS RATIO; SHEAR MODULUS; CONSTANTS; DEPENDENCE; MICROCRACKS;

D O I：

10.1007/s10853-013-7637-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In waste heat recovery applications, thermoelectric (TE) generators are subjected to thermal gradients and thermal transients, creating mechanical stresses in the TE legs. Such stresses are functions of the elastic moduli of the TE material. For SnTe1 +/- x matrices (where x = 0.0 or 0.016) composite specimens with 0-4 vol% SiC nanoparticle (SiCNP) additions, the elastic moduli (Young's modulus, shear modulus, and Poisson's ratio) were measured by resonant ultrasound spectroscopy from room temperature (RT) to 663 K. The effects of matrix composition and the SiCNP additions on the RT intercepts and the slopes of the elastic modulus as a function of temperature are also discussed.

引用

页码：8244 / 8258

页数：15

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