Measurement of thermophysical properties rigid fiber insulation
Zuev A.V., Zarichnyak Yu.P., Barinov D.Y. Measurement of thermophysical properties rigid fiber insulation // Proceedings of VIAM. 2021. No. 2. DOI: 10.18577/2307-6046-2021-0-2-88-98. URL: https://test.viam.ru/en/journal/2021/2/10
Keywords
fiber thermal insulation, measurements, thermal conductivity, thermophysical properties, heat protection material, fly vehicle.
Abstract
Describes a mathematical model for processing the results of measurements of thermal conductivity of highly porous fibrous materials of thermal protection. The results and some methodological features of measuring the thermal conductivity of rigid thermal insulation based on refractory oxide fibers are presented. The possibility of measurements taking into account the anisotropy of properties is investigated. The stiffness of the thermal insulation at the fiber contacts is provided by the binder. Thermal conductivity was measured by the stationary method on cylindrical samples in a wide temperature range from 20 to 1700 °C in various gaseous media.
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