Open AccessExperimental and numerical study of the formation of thermophysical characteristics of carbon composite materials. Part 1. Formation of the thermophysical characteristics of the carbon composite material
Author(s) -
С. А. Колесников,
Л. В. Ким,
В. Р. Дудин
Publication year - 2019
Publication title -
novye ogneupory
Language(s) - English
Resource type - Journals
ISSN - 1683-4518
DOI - 10.17073/1683-4518-2019-7-19-27
Subject(s) - materials science , thermal conductivity , composite material , composite number , carbon fibers , porosity , reinforced carbon–carbon , heat transfer , thermal contact conductance , thermal , thermal resistance , thermodynamics , physics
Conducted analysis of heat transfer in the amount of carbon-carbon composite materials. Experienced by found that homogeneous thermal State is formed at a depth of up to twenty structural cells of the composite. Identified characteristic layered structure porosity of the material in the form of pores-cracks. Experimentally demonstrated value of reducing coefficient of thermal conductivity for samples when their division into parts. Found that the process of cooling the hot rod of reinforcement from carbon composite substance to a lesser extent on effective thermal conductivity in transversal direction of a parallel beam of fibers to a greater extent the contact thermal resistance on the limits of the port-cracks with a crack of air heat conductivity 0,3 W/(m·K). Ill. 5. Ref. 18. Tab. 1.