Simulation of Thermoelectric Materials Densification during Spark Plasma Sintering with the Example of Ge–Si
- Authors: Tukmakova A.S.1, Samusevich K.L.1, Novotelnova A.V.1, Tkhorzhevskiy I.L.1, Makarova E.S.1
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Affiliations:
- ITMO University
- Issue: Vol 53, No 6 (2019)
- Pages: 772-774
- Section: XVI International Conference “thermoelectrics and Their Applications–2018” (Iscta 2018,) St. Petersburg, October 8–12, 2018
- URL: https://journals.rcsi.science/1063-7826/article/view/206288
- DOI: https://doi.org/10.1134/S1063782619060289
- ID: 206288
Cite item
Abstract
The densification of a thermoelectric material based on p-type Ge–Si during spark plasma sintering is simulated. The simulation uses the finite-element method within the Comsol Multiphysics program. The model of mechanical processes is based on the results of previous simulations of the sintering of powder metal materials and ceramics. The mechanical processes described include elastic and plastic deformation of the treated material. The calculation takes into account the influence of the material porosity on the thermal, electrical and mechanical properties. The sintering pressure formed as a result of compression and thermal expansion of the sample is calculated. The change in the sample diameter upon holding at the maximum temperature is calculated.
About the authors
A. S. Tukmakova
ITMO University
Author for correspondence.
Email: astukmakova@corp.ifmo.ru
Russian Federation, St. Petersburg, 197101
K. L. Samusevich
ITMO University
Email: astukmakova@corp.ifmo.ru
Russian Federation, St. Petersburg, 197101
A. V. Novotelnova
ITMO University
Email: astukmakova@corp.ifmo.ru
Russian Federation, St. Petersburg, 197101
I. L. Tkhorzhevskiy
ITMO University
Email: astukmakova@corp.ifmo.ru
Russian Federation, St. Petersburg, 197101
E. S. Makarova
ITMO University
Email: astukmakova@corp.ifmo.ru
Russian Federation, St. Petersburg, 197101