Details

Autor(en) / Beteiligte

• Kolesov, K. A.
• Mashirov, A. V.
• Kuznetsov, A. S.
• Koledov, V. V.
• Petrov, A. O.
• Shavrov, V. G.

Titel

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

Ist Teil von

• Journal of communications technology & electronics, 2023-04, Vol.68 (4), p.420-424

Ort / Verlag

Moscow: Pleiades Publishing

Erscheinungsjahr

2023

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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 DyAl 2 and GdNi 2 compounds, the thermal contact conductance is 2300–3300 W/(m 2 K). The effect of magnetic field of up to 5 T on thermal contact resistance is experimentally determined under vacuum conditions.