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Thermoelectric Properties of Non-equilibrium Synthesized Ce0.9Fe3CoSb12 Filled Skutterudites

Published online by Cambridge University Press:  01 February 2011

Qing Jie ,
Juan Zhou ,
Ivo K. Dimitrov ,
Chang-Peng Li ,
Ctirad Uher ,
Hsin Wang ,
Wallace D. Porter  and
Qiang Li
Qing Jie
Affiliation:
[email protected]@hotmail.com, Stony Brook University, Materials Science and Engineering, Stony Brook, New York, United States
Juan Zhou
Affiliation:
[email protected], Stony Brook University, Materials Science and Engineering, Stony Brook, New York, United States
Ivo K. Dimitrov
Affiliation:
[email protected], Brookhaven National Laborotary, Condensed Matter Physics and Materials Science, Upton, New York, United States
Chang-Peng Li
Affiliation:
[email protected], University of Michigan, Department of Physics, Ann Arbor, Michigan, United States
Ctirad Uher
Affiliation:
[email protected], University of Michigan, Department of Physics, Ann Arbor, Michigan, United States
Hsin Wang
Affiliation:
[email protected], Oak Ridge National Laboratory, Materials Science and Technology Division, Oak Ridge, Tennessee, United States
Wallace D. Porter
Affiliation:
[email protected], Oak Ridge National Laboratory, Materials Science and Technology Division, Oak Ridge, Tennessee, United States
Qiang Li
Affiliation:
[email protected], Brookhaven National Laborotary, Condensed Matter Physics and Materials Science, Upton, New York, United States
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Abstract

We report on the thermoelectric properties of the filled skutterudite Ce0.9Fe3CoSb12 prepared via non-equilibrium synthesis method. Melt-spun ribbons were directly converting into single phase polycrystalline pellets under pressure. For comparison, pellets with the same composition were also prepared using the conventional solid-state reaction followed by long term annealing. It was found that the non-equilibrium synthesized samples have higher power factors and lower thermal conductivity, leading to substantially higher figure of merit.

Keywords

thermoelectricthermal conductivitygrain size
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1267: Symposium DD – Thermoelectric Materials 2010-Growth, Properties, Novel Characterization Methods and Applications , 2010 , 1267-DD03-03
Copyright
Copyright © Materials Research Society 2010

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