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  Uranium-based materials for thermoelectric applications

Svanidze, E., Veremchuk, I., Leithe-Jasper, A., & Grin, Y. (2019). Uranium-based materials for thermoelectric applications. Applied Physics Letters, 115(21): 213905, pp. 1-5. doi:10.1063/1.5128593.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0005-4FC8-2 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-4FD3-5
Genre: Journal Article

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 Creators:
Svanidze, E.1, Author              
Veremchuk, I.2, Author              
Leithe-Jasper, A.3, Author              
Grin, Yu.4, Author              
Affiliations:
1Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863405              
2Igor Veremchuk, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863411              
3Andreas Leithe-Jasper, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863406              
4Juri Grin, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863413              

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Free keywords: Aerospace applications; Antimony compounds; Crystal structure; Platinum compounds; Thermal conductivity; Thermoelectric equipment; Thermoelectricity, Conduction electrons; Effective mass; Experimental investigations; Low thermal conductivity; Temperature range; Thermoelectric application; Thermoelectric figure of merit; Thermoelectric properties, Uranium compounds
 Abstract: Uranium-based compounds possess several properties which make them suitable candidates for thermoelectric applications - complex crystal structures made of heavy components, electrons with enhanced effective masses, as well as low thermal conductivity. However, the difficulty in predicting their properties by computational means, coupled with the lack of experimental investigations on these peculiar systems, limits our understanding of the effect of 5f- and conduction electron hybridization on the Seebeck coefficient, as well as electric and thermal conductivities. In this work, we examine a family of uranium-based materials with a crystal structure of the ternary Zintl phase Y3Au3Sb4. The thermoelectric properties of U 3 T 3Sb4 (T = Ni, Pd, and Pt) compounds are highly dependent upon their microstructures and compositions, arising from the differences in their synthesis. The maximum value of the thermoelectric figure of merit Z T ≈ 0.02 was obtained for the U3Pt3Sb4 compound in the - 100 °C ≤ T ≤ 100 °C temperature range, which makes this material interesting for further development in aerospace applications. © 2019 Author(s).

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Language(s): eng - English
 Dates: 2019-11-202019-11-20
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1063/1.5128593
BibTex Citekey: Svanidze2019
 Degree: -

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Title: Applied Physics Letters
  Abbreviation : Appl. Phys. Lett.
Source Genre: Journal
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Publ. Info: Melville, NY : American Institute of Physics
Pages: - Volume / Issue: 115 (21) Sequence Number: 213905 Start / End Page: 1 - 5 Identifier: ISSN: 0003-6951
CoNE: https://pure.mpg.de/cone/journals/resource/954922836223