Thermal Contact Resistance at Cryogenic Temperatures in the Presence of Strong Magnetic Fields

K. A. Kolesov; Колесов К. А.; A. V. Mashirov; Маширов А. В.; A. S. Kuznetsov; Кузнецов А. С.; V. V. Koledov; Коледов В. В.; A. O. Petrov; Петров А. О.; V. G. Shavrov; Шавров В. Г.

doi:10.31857/S0033849423040058

Thermal Contact Resistance at Cryogenic Temperatures in the Presence of Strong Magnetic Fields

Authors: Kolesov K.A.¹, Mashirov A.V.¹, Kuznetsov A.S.¹, Koledov V.V.¹, Petrov A.O.¹, Shavrov V.G.¹
Affiliations:
1. Kotelnikov Institute of Radioengineering and Eletcronics, Russian Academy of Sciences
Issue: Vol 68, No 4 (2023)
Pages: 360-365
Section: К 90-ЛЕТИЮ ВЛАДИМИРА ГРИГОРЬЕВИЧА ШАВРОВА
URL: https://clinpractice.ru/0033-8494/article/view/650545
DOI: https://doi.org/10.31857/S0033849423040058
EDN: https://elibrary.ru/PEZNZB
ID: 650545

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Abstract

A physical model of a mechanical thermal switch at cryogenic temperatures is studied. In the model, heat is transferred due to contact heat conduction in a detachable contact pair of two copper cylinders. A mechanical thermal switch is developed using a cryomagnetic system with a 10-T superconducting solenoid, and the values of thermal contact conductance are determined in a temperature interval of 10–160 K, including values at a magnetic field of 5 T. In an experimental temperature interval of 60–80 K, close to the phase transition of the DyAl2 and GdNi2 compounds, the thermal contact conductance is 2300–3300 W/(m2 K). The effect of magnetic field of up to 5 T on thermal contact resistance is experimentally determined under vacuum conditions

Keywords

mechanical thermal switch, thermal contact conductance

References

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