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

Robert D. Schmidt; Eldon D. Case; Jennifer E. Ni; Rosa M. Trejo; Edgar Lara-Curzio; Rachel J. Korkosz; Mercouri Kanatzidis

doi:10.1007/s10853-013-7637-6

High-temperature elastic moduli of thermoelectric SnTe_1±x - Y SiC nanoparticulate composites

Robert D. Schmidt, Eldon D. Case^*, Jennifer E. Ni, Rosa M. Trejo, Edgar Lara-Curzio, Rachel J. Korkosz, Mercouri Kanatzidis

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

42 Scopus citations

Abstract

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 SnTe_1±x matrices (where x = 0.0 or 0.016) composite specimens with 0-4 vol% SiC nanoparticle (SiC_NP) 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 SiC_NP additions on the RT intercepts and the slopes of the elastic modulus as a function of temperature are also discussed.

Original language	English (US)
Pages (from-to)	8244-8258
Number of pages	15
Journal	Journal of Materials Science
Volume	48
Issue number	23
DOIs	https://doi.org/10.1007/s10853-013-7637-6
State	Published - Dec 1 2013

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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title = "High-temperature elastic moduli of thermoelectric SnTe1±x - Y SiC nanoparticulate composites",

abstract = "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.",

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T1 - High-temperature elastic moduli of thermoelectric SnTe1±x - Y SiC nanoparticulate composites

AU - Schmidt, Robert D.

AU - Case, Eldon D.

AU - Ni, Jennifer E.

AU - Trejo, Rosa M.

AU - Lara-Curzio, Edgar

AU - Korkosz, Rachel J.

AU - Kanatzidis, Mercouri

PY - 2013/12/1

Y1 - 2013/12/1

N2 - 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.

AB - 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.

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JO - Journal of Materials Science

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High-temperature elastic moduli of thermoelectric SnTe_1±x - Y SiC nanoparticulate composites

Abstract

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