Determination of the Degree of Blackness of the Ceramic Composite Material VMK-5
( Pp. 24-28)

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Suleymanov Sultan X. Cand. Sci. (Phys.-Math.); Head at the Laboratory of High-Temperature Composite Materials and Coatings
Institute of Materials Science of the SPA “Physics-Sun” of the Academy of Sciences of the Republic of Uzbekistan
Tashkent, Uzbekistan Kulagina Natalya A. research at the Laboratory of High-Temperature Composite Materials and Coatings
Institute of Materials Science of the SPA “Physics-Sun” of the Academy of Sciences of the Republic of Uzbekistan
Tashkent, Uzbekistan Babashov Vladimir G. kandidat tehnicheskih nauk; zaveduyuschiy laboratoriey Vserossiyskogo nauchno-issledovatelskogo instituta aviacionnyh materialov
Russian Scientific Research Institute of Aviation Materials, State Scientific Center of the Russian Federation
Moscow, Russian Federation Djanklich Mustafa U. Cand. Sci. (Eng.); senior research at the Laboratory of High-Temperature Composite Materials and Coatings
Institute of Materials Science of the SPA “Physics-Sun” of the Academy of Sciences of the Republic of Uzbekistan
Tashkent, Uzbekistan Dyskin Valery G. Cand. Sci. (Eng.); senior research at the Laboratory of High-Temperature Composite Materials and Coatings
Institute of Materials Science of the SPA “Physics-Sun” of the Academy of Sciences of the Republic of Uzbekistan
Tashkent, Uzbekistan
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Abstract:
An integral emissivity (e.g. a degree of blackness,) is the most important characteristic that determines the intensity of a heat transfer by radiation. In a process of a various heat and power plants design, thermal protection for spacecraft, etc. one needs to know a temperature dependence of the degree of blackness ε(T) of the materials used. At present, a growing demand for the new structural and composite materials with specified characteristics and a controlled degree of blackness, are investigated and used. This paper presents a methodology for the degree of blackness definition of porous materials with low heat capacity. This methodology assists in a calculation of the temperature dependence of the ceramic composite material VMK-5 ε(T) = 0,0002867T + 0,114.
How to Cite:
Suleymanov S.X., Kulagina N.A., Babashov V.G., Djanklich M.U., Dyskin V.G., (2021), DETERMINATION OF THE DEGREE OF BLACKNESS OF THE CERAMIC COMPOSITE MATERIAL VMK-5. Computational Nanotechnology, 2: 24-28. DOI: 10.33693/2313-223X-2021-8-2-24-28
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hhtp://termalinfo.ru/svojstva-materialv/oksidey
Keywords:
degree of blackness, reflection coefficient, transmittance, cooling curve, composite material, heat capacity, integral emissivity, composite ceramic material, thermo radiometer.