Investigation of thermal conductivity of composite multilayer samples

Barinov D.Y.
UDC
621.793.71
DOI
10.18577/2307-6046-2023-0-7-104-113
Article PDF (Russian) (761.21 KB)
How to cite
Barinov D.Y. Investigation of thermal conductivity of composite multilayer samples // Proceedings of VIAM. 2023. No. 7. DOI: 10.18577/2307-6046-2023-0-7-104-113. URL: https://test.viam.ru/en/journal/2023/7/9
Keywords
thermal conductivity, heat capacity, thermophysical characteristics, pulse method, heat transfer, thermal resistance
Abstract

When studying the thermophysical properties of new materials, it is often necessary to measure composite samples consisting of a coated substrate. In this paper, we consider a technique for measuring the thermal conductivity of a sample located between two substrate disks using a three-layer model. The influence of thermal resistance between layers on the measurement results is analyzed. It is shown that the application of silicone oil and graphite lubricant reduces the measurement error by up to 40 % compared with the use of pure metal-to-metal contact.

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