Hot pressing and nanostructuring of Bi_(90)Sb_(10) alloys to concurrently improve mechanical and thermoelectric properties
Abstract
The microstructure of Bi_(90)Sb_(10) composites with separate additions of Ag and As was studied, and measurements of the room temperature transport properties were made to see the effects of hot pressing with and without precipitates. The most successful nanostructured Bi_(90)Sb_(10) samples were those containing As when annealed for durations of 3 days or less near the solidus temperature. The transport measurements showing similar electrical resistivity and decreased thermal conductivity with the addition of precipitates at room temperature demonstrates the potential of this bulk nanostructuring and synthesis approach in this material system. With further study, this work could be helpful in creating similar complex nanostructured systems which have the potential to yield high-efficiency thermoelectric materials for low temperature applications.
Additional Information
© 2012 Wiley-VCH Verlag. Received 4 June 2012, revised 13 September 2012, accepted 14 September 2012. Published online 4 October 2012. This work was supported by the AFOSR-MURI for cryogenic Peltier cooling.Additional details
- Eprint ID
- 37156
- DOI
- 10.1002/pssa.201228365
- Resolver ID
- CaltechAUTHORS:20130226-151237552
- Air Force Office of Scientific Research (AFOSR) Multidisciplinary University Research Initiative (MURI)
- Created
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2013-02-26Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field