Analysis of the potential features in multicomponent ceramic composites based on the refractory anoxic compounds (part 2)

Authors

  • Владислав Владиславович Цигода National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», 37, Prosp. Peremohy, Kyiv, Ukraine, 03056, Ukraine https://orcid.org/0000-0001-6997-6384
  • Катерина Всеволодівна Кириленко National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», 37, Prosp. Peremohy, Kyiv, Ukraine, 03056, Ukraine https://orcid.org/0000-0003-0353-8685
  • Віталій Ярославович Петровський National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», 37, Prosp. Peremohy, Kyiv, Ukraine, 03056, Ukraine https://orcid.org/0000-0002-1544-4320

DOI:

https://doi.org/10.15587/2312-8372.2016.84991

Keywords:

percolation theory, Skal’s theory, Seebeck effect, hafnium carbide, Seebeck coefficient, metallic inclusions

Abstract

The physical nature of thermoelectric phenomena in ceramic composites based on refractory anoxic compounds is examined in the article as the object of research. In the current operating conditions, the disadvantages of this object are a big response time, which presented in that the produced functional devices do not sensitive to the sudden peak changes in the temperature.

The study of thermoelectric properties was conducted by heating the entire sample. It was placed in the oven, increase the speed of heating which is supported within 4 deg/min with an accuracy of ± 0,2 %. The temperature of the oven was parallel controlled by platinum-platinum-rhodium thermocouple.

For the first time proved that for maximum Seebeck coefficient, metallic inclusions should have an elongated cylindrical shape and volume. Percolation threshold should be about 2, and fractal dimension of the cluster should be about 2,4. Obtained values contradict the Skal’s theory and need further research. It is proved that using the effect of accumulating and storing charge during their release, it can increase conductivity without reducing thermoelectric ability of the couple, which in turn will increase the thermoelectric Q-factor.

These research results can be used for the manufacture of highly efficient thermoelectric converters.

Author Biographies

Владислав Владиславович Цигода, National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», 37, Prosp. Peremohy, Kyiv, Ukraine, 03056

PhD student

Department of Microelectronics

Катерина Всеволодівна Кириленко, National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», 37, Prosp. Peremohy, Kyiv, Ukraine, 03056

Assistant, Researcher

Department of Renewable Energy

Віталій Ярославович Петровський, National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», 37, Prosp. Peremohy, Kyiv, Ukraine, 03056

Doctor of Technical Sciences, Professor

Department of Microelectronics

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Published

2016-11-24

How to Cite

Цигода, В. В., Кириленко, К. В., & Петровський, В. Я. (2016). Analysis of the potential features in multicomponent ceramic composites based on the refractory anoxic compounds (part 2). Technology Audit and Production Reserves, 6(1(32), 9–16. https://doi.org/10.15587/2312-8372.2016.84991

Issue

Vol. 6 No. 1(32) (2016): Mechanical engineering and machine building. Electrical engineering and industrial electronics. Information technologies

Section

Electrical Engineering and Industrial Electronics: Original Research

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Copyright (c) 2016 Владислав Владиславович Цигода, Катерина Всеволодівна Кириленко, Віталій Ярославович Петровський

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