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Thermal Conductivity Reductions in Sige via Addition of Nanophase Particles

Published online by Cambridge University Press:  15 February 2011

Nancy Scoville ,
Clara Bajger ,
Jon Rolfe  and
Jan Vandersande
Nancy Scoville
Affiliation:
Thermo Trex Corporation, Thermoelectrics Department, 74 West Street, Waltham, MA 02254
Clara Bajger
Affiliation:
Thermo Trex Corporation, Thermoelectrics Department, 74 West Street, Waltham, MA 02254
Jon Rolfe
Affiliation:
Thermo Trex Corporation, Thermoelectrics Department, 74 West Street, Waltham, MA 02254
Jan Vandersande
Affiliation:
Jet Propulsion Laboratory, Thermoelectrics Department, 2800 Oak Grove Drive, Pasadena, CA 91109
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Abstract

Transport models have predicted that the thermal conductivity of SiGe alloys could be appreciably reduced by incorporating a discrete 40Å particles with the SiGe grains. Such a thermal conductivity reduction would lead to substantial improvements in the figure-of-merit of thermoelectric materials. This paper reports on recent results on adding 40Å particles to SiGe via a spark erosion process. Thermal conductivity reductions consistent with the transport models have been achieved, however, the improvement in figure-of-merit has not been as large as predicted.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 351: Symposium V – Molecularly Designed Ultrafine/Nanostructured Materials , 1994 , 431
Copyright
Copyright © Materials Research Society 1994

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References

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