Journal article
Effect of rotary-die equal channel angular pressing on the thermoelectric properties of a (Bi,Sb)2Te3 alloy
Journal of materials research, v 20(4), pp 895-903
01 Apr 2005
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
A (Bi,Sb)2Te3 alloy powder was sintered via a pulse discharge sintering process followed by a rotary-die equal channel angular pressing (ECAP) process. It was found by x-ray diffraction analysis that the as-sintered material shows preferentially orientated microstructure, which were considerably eliminated by following ECAP processes. Generally, the Seebeck coefficient of the material was reduced by ECAP processing, which was attributed to the increased carrier concentration after the severe plastic deformation. Electrical conductivity increases after ECAP, which was also originated from the increased carrier concentration. The figure of merit of the material in different conditions shows higher value in the transverse direction. In the transverse samples, those after ECAP processing showed increased figures of merit, which reached 3.85 × 10−3/K in the material after 4 passes of ECAP.
Metrics
Details
- Title
- Effect of rotary-die equal channel angular pressing on the thermoelectric properties of a (Bi,Sb)2Te3 alloy
- Creators
- Z.M. Sun - Drexel UniversityH. Hashimoto - National Institute of Advanced Industrial Science and TechnologyN. Keawprak - National Institute of Advanced Industrial Science and TechnologyA.B. Ma - National Institute of Advanced Industrial Science and TechnologyL.F. Li - Technical Institute of Physics and ChemistryM.W. Barsoum - National Institute of Advanced Industrial Science and Technology
- Publication Details
- Journal of materials research, v 20(4), pp 895-903
- Publisher
- Cambridge University Press
- Number of pages
- 9
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000229293500018
- Scopus ID
- 2-s2.0-29044442718
- Other Identifier
- 991019167720904721
UN Sustainable Development Goals (SDGs)
This publication has contributed to the advancement of the following goals:
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary