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Title: Disorder scattering effect on the high-temperature lattice thermal conductivity of TiCoSb-based half-Heusler compounds

Abstract

The lattice thermal conductivities of TiCoSb-based half-Heusler alloys are presented in the temperature range between 300 and 900 K. A phenomenological model calculation of the high-temperature lattice thermal conductivities of these alloys was derived based on the Klemens-Callaway theory [Phys. Rev. 119, 507 (1960); ibid. 113, 1046 (1959)]. Good agreement was obtained between the calculated and the experimental data for TiCoSb, TiCo{sub 0.5}Rh{sub 0.5}Sb, and Ti{sub 0.5}Zr{sub 0.5}CoSb. Furthermore, the model predicts that simultaneously isoelectronic alloying on both Ti and Co sublattices could reduce the lattice thermal conductivity, and a {kappa}{sub L} value of 0.3 W/m K is predicted for Ti{sub 0.5}Zr{sub 0.5}Co{sub 0.5}Rh{sub 0.5}Sb at 900 K.

Authors:
; ; ;  [1]
  1. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China and Graduate School of Chinese Academy of Sciences, Shanghai 200050 (China)
Publication Date:
OSTI Identifier:
20713960
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 98; Journal Issue: 1; Other Information: DOI: 10.1063/1.1944213; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ANTIMONY ALLOYS; COBALT ALLOYS; HEUSLER ALLOYS; PHONONS; RHODIUM ALLOYS; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0273-0400 K; TEMPERATURE RANGE 0400-1000 K; THERMAL CONDUCTIVITY; TITANIUM ALLOYS; ZIRCONIUM ALLOYS

Citation Formats

Min, Zhou, Lidong, Chen, Wenqing, Zhang, Chude, Feng, and State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050. Disorder scattering effect on the high-temperature lattice thermal conductivity of TiCoSb-based half-Heusler compounds. United States: N. p., 2005. Web. doi:10.1063/1.1944213.
Min, Zhou, Lidong, Chen, Wenqing, Zhang, Chude, Feng, & State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050. Disorder scattering effect on the high-temperature lattice thermal conductivity of TiCoSb-based half-Heusler compounds. United States. doi:10.1063/1.1944213.
Min, Zhou, Lidong, Chen, Wenqing, Zhang, Chude, Feng, and State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050. Fri . "Disorder scattering effect on the high-temperature lattice thermal conductivity of TiCoSb-based half-Heusler compounds". United States. doi:10.1063/1.1944213.
@article{osti_20713960,
title = {Disorder scattering effect on the high-temperature lattice thermal conductivity of TiCoSb-based half-Heusler compounds},
author = {Min, Zhou and Lidong, Chen and Wenqing, Zhang and Chude, Feng and State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050},
abstractNote = {The lattice thermal conductivities of TiCoSb-based half-Heusler alloys are presented in the temperature range between 300 and 900 K. A phenomenological model calculation of the high-temperature lattice thermal conductivities of these alloys was derived based on the Klemens-Callaway theory [Phys. Rev. 119, 507 (1960); ibid. 113, 1046 (1959)]. Good agreement was obtained between the calculated and the experimental data for TiCoSb, TiCo{sub 0.5}Rh{sub 0.5}Sb, and Ti{sub 0.5}Zr{sub 0.5}CoSb. Furthermore, the model predicts that simultaneously isoelectronic alloying on both Ti and Co sublattices could reduce the lattice thermal conductivity, and a {kappa}{sub L} value of 0.3 W/m K is predicted for Ti{sub 0.5}Zr{sub 0.5}Co{sub 0.5}Rh{sub 0.5}Sb at 900 K.},
doi = {10.1063/1.1944213},
journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 1,
volume = 98,
place = {United States},
year = {2005},
month = {7}
}