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- Title
Effects of Spark Plasma Sintering Temperature on Thermoelectric Properties of Higher Manganese Silicide.
- Authors
An, Tae-Ho; Choi, Soon-Mok; Seo, Won-Seon; Park, Chan; Kim, Il-Ho; Kim, Sun-Uk
- Abstract
Higher manganese silicide (HMS) is a promising p-type thermoelectric material. HMS samples were synthesized by a vacuum induction melting process and sintered by spark plasma sintering (SPS) at various temperatures to obtain a single phase of HMS and investigate the effect of the SPS temperature on the thermoelectric properties. A single phase of HMS was obtained, and the appearance and the amount of MnO and MnSi as secondary phases could be controlled via the SPS temperature. The effects of the SPS temperature on the electrical conductivity and Seebeck coefficient of the HMS samples were investigated. The changes in the electrical conductivity and Seebeck coefficient were attributed to changes in the density and the amount of MnO secondary phase.
- Subjects
SINTERING; THERMOELECTRIC effects; MANGANESE; SILICIDES; THERMOELECTRIC materials; SEEBECK coefficient; ELECTRIC conductivity research
- Publication
Journal of Electronic Materials, 2013, Vol 42, Issue 7, p2269
- ISSN
0361-5235
- Publication type
Article
- DOI
10.1007/s11664-013-2623-y