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Thermal expansion of superconducting tapes at low temperatures

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Thermophysics and Aeromechanics Aims and scope

Abstract

The results of a dilatometric study of the linear thermal expansion coefficient of superconducting tapes “Amperium” and “SuperOx” in the temperature range of 100–370 K are presented. Temperature dependences are obtained, and reference tables of recommended values of thermal properties are calculated. The effect of film deformation on the measurement results is investigated. The design of the sample holder, eliminating the tape bending is developed. The linear thermal expansion coefficient of the tapes is compared with the thermal expansion of the metal layers of the films. It is shown that the difference in the relative expansion in the temperature range from 100 to 293 K does not exceed 0.05 %.

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Authors and Affiliations

  1. Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia

    Yu. M. Kozlovskii & S. V. Stankus

Authors
  1. Yu. M. Kozlovskii
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  2. S. V. Stankus
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Correspondence to S. V. Stankus.

Additional information

The work was financed by the RF Ministry of Education and Science (Agreement No. 075-15-2020-770).

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Kozlovskii, Y.M., Stankus, S.V. Thermal expansion of superconducting tapes at low temperatures. Thermophys. Aeromech. 28, 603–606 (2021). https://doi.org/10.1134/S0869864321040156

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  • DOI: https://doi.org/10.1134/S0869864321040156

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