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Heat conductivity of pyrolytic graphite of mark UPV-1 at temperatures 1900–2950 K
https://doi.org/10.32446/0368-1025it.2020-9-50-53
Abstract
The urgency of the work is caused by that at research of heat conductivity in anisotropic materials is necessary to consider infringement of parallelism between vectors of heat flux and a gradient of temperature. In the previous works at studying heat conductivity of pyrolytic graphites techniques which were applied to isotropic graphites were used. Results of measurement of heat conductivity of pyrolytic graphite of mark UPV-1 in a direction in parallel to a plane of sedimentation are presented. The experimental samples which are heated up by an electric current, represented hollow cylinders at which the plane of sedimentation of pyrolytic graphite has been located along radius. It is offered also heat flux which defined on energy of radiation from an external surface of the sample, and a gradient of temperature to measure along radius, that is strictly in parallel each other. The comparative analysis of experimental data of heat conductivity (in parallel a plane of sedimentation), measured in the given work and resulted in literature sources is brought. The range of the investigated temperatures makes 1900–2950 K and is expanded in area of higher values on 450 K.
About the Authors
A. V. Kostanovskiy
Joint Institute for High Temperatures of the Russian Academy of Sciences
Russian Federation
Russian Federation
Аlexander V. Kostanovskiy
Moscow
M. E. Kostanovskaya
Joint Institute for High Temperatures of the Russian Academy of Sciences
Russian Federation
Russian Federation
Margarita E. Kostanovskaya
Moscow
M. G. Zeodinov
Joint Institute for High Temperatures of the Russian Academy of Sciences
Russian Federation
Russian Federation
Marat G. Zeodinov
Moscow
A. A. Pronkin
Joint Institute for High Temperatures of the Russian Academy of Sciences
Russian Federation
Russian Federation
Alexander A. Pronkin
Moscow
References
1. Wang L. W., Tamainot-Telto Z., Metcalf S. J., Critoph R. E., Wang R. Z., Applied Thermal Engineering, 2010, vol. 30, no. 13, pp. 1805–1811. https://doi.org/10.1016/j.applthermaleng.2010.04.014
2. Miszczak M., Świderski W., International Journal of Modern Manufacturing Technologies, 2012, vol. 4, no. 2, pp. 55–60.
3. Kostanovskiy A. V., Kostanovskaya M. E., Zeodinov M. G., High Temperature, 2013, vol. 51, no. 3, pp. 426–429. https://doi.org/10.1134/S0018151X13030036
4. Sosedov V. P., Svoistva konstuksionnih materialov on the base of carbon, Moscow, Metallurgiya Publ., 1975, 334 p. (in Russian).
5. Ho С. Y., Powell R. W., Liley P. E., Thermal Conductivity of Selected Materials. Pt. 2, Washington, Superintendent of Documents Government Printing Offi ce, 1968, 148 p.
6. Chekhovskoi V. Ya., Petrov V. A., Petrova I. I., Lukshin E. N., High Temperature, 1971, vol. 9, no. 1, pp. 80–84.
7. Prigogine I., Kondepudi D., Modern Thermodynamics. From Heat Engines to Dissipative Structures, New York, John Wiley&Sons, 1999, 451 p.
8. Latiev L. N., Petrov V. A., Chekhovskoi V. Ya., and Shestakov E. N., Izluchatel`nye svoistva tverdykh materialov. Spravochnik, Ed. A. E. Sheindlin, Moscow, Energiya Publ., 1974, 470 p. (in Russian).
9. Kostanovskii A. V. Zeodinov M. G., Kostanovskaya M. E., Measurement Techniques, 2011, vol. 53, no. 12, pp. 1380–1388. https://doi.org/10.1007/s11018-011-9670-7
10. Kostanovskiy A. V., Zeodinov M. G., Kostanovskaya M. E., Pronkin A. A., High Temperature, 2019, vol. 57, no. 1, pp. 122–123. https://doi.org/10.1134/S0018151X19010152
Review
For citations:
Kostanovskiy A.V., Kostanovskaya M.E., Zeodinov M.G., Pronkin A.A. Heat conductivity of pyrolytic graphite of mark UPV-1 at temperatures 1900–2950 K. Izmeritel`naya Tekhnika. 2020;(9):50-53. (In Russ.) https://doi.org/10.32446/0368-1025it.2020-9-50-53
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