Development of Spark Plasma Syntering (SPS) technology for preparation of nanocrystalline p-type thermoelctrics based on (BiSb)2Te3
| Autor: | Zinovy Dashevsky, M. Maksymuk, Bogdan Dzundza, O. Kostyuk, Leonid Chernyak, V. Bublik |
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| Rok vydání: | 2020 |
| Předmět: |
Antimony telluride
Materials science business.industry Physics QC1-999 Spark plasma sintering chemistry.chemical_element Atmospheric temperature range bi0.5sb1.5te3 Condensed Matter Physics Thermoelectric materials thermoelectric properties Nanocrystalline material Bismuth chemistry.chemical_compound chemistry Thermoelectric effect Optoelectronics General Materials Science Grain boundary spark plasma sintering (sps) Physical and Theoretical Chemistry business thermoelectric figure of merit |
| Zdroj: | Фізика і хімія твердого тіла, Vol 21, Iss 4, Pp 628-634 (2020) |
| ISSN: | 2309-8589 1729-4428 |
| Popis: | Bismuth antimony telluride is the most commonly used commercial thermoelectric material for power generation and refrigeration over the temperature range of 200–400 K. Improving the performance of these materials is a complected balance of optimizing thermoelectric properties. Decreasing the grain size of Bi0.5Sb1.5Te3 significantly reduces the thermal conductivity due to the scattering phonons on the grain boundaries. In this work, it is shown the advances of spark plasma sintering (SPS) for the preparation of nanocrystalline p-type thermoelectrics based on Bi0.5Sb1.5Te3 at different temperatures (240, 350, 400oC). The complex study of structural and thermoelectric properties of Bi0.5Sb1.5Te3 were presented. The high dimensionless thermoelectric figure of merit ZT ~ 1 or some more over 300–400 K temperature range for nanocrystalline p-type Bi0.5Sb1.5Te3 was obtained. |
| Databáze: | OpenAIRE |
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