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Pisma v Zhurnal Tekhnicheskoi Fiziki, 2020, Volume 46, Issue 18, Pages 45–48
DOI: https://doi.org/10.21883/PJTF.2020.18.50003.18296 (Mi pjtf4996) 		 
Investigation of the mechanisms of compaction of CoSb$_{3}$ skutterudite nanopowders under field-activated sintering

A. S. Tukmakovaa, D. B. Shcheglovaa, A. P. Novitskiib, A. I. Voroninb, V. V. Khovailobc, A. V. Novotelnovaa

a St. Petersburg National Research University of Information Technologies, Mechanics and Optics
b National University of Science and Technology «MISIS», Moscow
c South Ural State University, Chelyabinsk
Full-text PDF (205 kB)
DOI: https://doi.org/10.21883/PJTF.2020.18.50003.18296
Abstract: We calculated the compaction parameters of CoSb$_{3}$ thermoelectric powders under field-activated sintering. The values of the creep activation energy, sensitivity to the strain rate, and the complex parameter of the material characterizing the state are obtained. The compaction of the powders is due to the mechanisms of grain sliding in the sample. We performed the computer simulation of the sintering process by the finite element method. The change in the dimensions of the sample is calculated using the creep deformation model. The simulation results correspond to the experimental data.
Keywords: spark plasma sintering, field-assisted sintering, simulation of powders densification, sintering kinetics, skutterudites, thermoelectrics.
Funding agency Grant number
Russian Foundation for Basic Research 18-38-00371
Russian Science Foundation 19-79-10282
Ministry of Education and Science of the Russian Federation 02.A03.21.0011
This work was supported by the Russian Foundation for Basic Research, project no. 18-38-00371 (computer simulation). The experimental study was supported by the Russian Science Foundation, project no. 19-79-10282. V. Khovailo is grateful for the support under contract no. 02.A03.21.0011 within the framework of Russian Governmental Resolution no. 211.
Received: 20.03.2020
Revised: 23.06.2020
Accepted: 23.06.2020
English version:
Technical Physics Letters, 2020, Volume 46, Issue 9, Pages 931–934
DOI: https://doi.org/10.1134/S1063785020090308
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: A. S. Tukmakova, D. B. Shcheglova, A. P. Novitskii, A. I. Voronin, V. V. Khovailo, A. V. Novotelnova, “Investigation of the mechanisms of compaction of CoSb$_{3}$ skutterudite nanopowders under field-activated sintering”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 46:18 (2020), 45–48; Tech. Phys. Lett., 46:9 (2020), 931–934
Citation in format AMSBIB
\Bibitem{TukShcNov20}
\by A.~S.~Tukmakova, D.~B.~Shcheglova, A.~P.~Novitskii, A.~I.~Voronin, V.~V.~Khovailo, A.~V.~Novotelnova
\paper Investigation of the mechanisms of compaction of CoSb$_{3}$ skutterudite nanopowders under field-activated sintering
\jour Pisma v Zhurnal Tekhnicheskoi Fiziki
\yr 2020
\vol 46
\issue 18
\pages 45--48
\mathnet{http://mi.mathnet.ru/pjtf4996}
\crossref{https://doi.org/10.21883/PJTF.2020.18.50003.18296}
\elib{https://elibrary.ru/item.asp?id=44041103}
\transl
\jour Tech. Phys. Lett.
\yr 2020
\vol 46
\issue 9
\pages 931--934
\crossref{https://doi.org/10.1134/S1063785020090308}
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