Effect of partial substitution of calcium for yttrium on the structure and properties of the Y0.9Ca0.1Ba2Cu3O6.8 superconductor
- Authors: Blinova Y.V.1, Cherepanova L.A.2, Krinitsina T.P.1, Kuznetsova E.I.1, Sudareva S.V.2, Titova S.G.2, Pryanichnikov S.V.2, Degtyarev M.V.1, Romanov E.P.1
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Affiliations:
- Mikheev Institute of Metal Physics, Ural Branch
- Institute of Metallurgy, Ural Branch
- Issue: Vol 117, No 2 (2016)
- Pages: 151-159
- Section: Structure, Phase Transformations, and Diffusion
- URL: https://journals.rcsi.science/0031-918X/article/view/166604
- DOI: https://doi.org/10.1134/S0031918X16020058
- ID: 166604
Cite item
Abstract
The crystal structure of the high-temperature Y1–xCaxBa2Cu3O6.8 superconductor has been studied in a temperature range of 80–300 K using low-temperature X-ray diffraction analysis; its microstructure has been studied by scanning and transmission electron microscopy. Changes of the bond length in the structure of principal phase and precipitation topology of impurity phases and their compositions have been analyzed. An addition of calcium was shown to increase the environmental tolerance of the principal Y123 phase and its microhardness and ensures the low unchanged coefficient of thermal expansion. All of the facts indicate that the material can be used to manufacture composite superconducting articles.
About the authors
Yu. V. Blinova
Mikheev Institute of Metal Physics, Ural Branch
Email: sudareva@imp.uran.ru
Russian Federation, ul. S. Kovalevskoi 18, Ekaterinburg, 620990
L. A. Cherepanova
Institute of Metallurgy, Ural Branch
Email: sudareva@imp.uran.ru
Russian Federation, ul. Amundsena 101, Ekaterinburg, 620016
T. P. Krinitsina
Mikheev Institute of Metal Physics, Ural Branch
Email: sudareva@imp.uran.ru
Russian Federation, ul. S. Kovalevskoi 18, Ekaterinburg, 620990
E. I. Kuznetsova
Mikheev Institute of Metal Physics, Ural Branch
Email: sudareva@imp.uran.ru
Russian Federation, ul. S. Kovalevskoi 18, Ekaterinburg, 620990
S. V. Sudareva
Institute of Metallurgy, Ural Branch
Author for correspondence.
Email: sudareva@imp.uran.ru
Russian Federation, ul. Amundsena 101, Ekaterinburg, 620016
S. G. Titova
Institute of Metallurgy, Ural Branch
Email: sudareva@imp.uran.ru
Russian Federation, ul. Amundsena 101, Ekaterinburg, 620016
S. V. Pryanichnikov
Institute of Metallurgy, Ural Branch
Email: sudareva@imp.uran.ru
Russian Federation, ul. Amundsena 101, Ekaterinburg, 620016
M. V. Degtyarev
Mikheev Institute of Metal Physics, Ural Branch
Email: sudareva@imp.uran.ru
Russian Federation, ul. S. Kovalevskoi 18, Ekaterinburg, 620990
E. P. Romanov
Mikheev Institute of Metal Physics, Ural Branch
Email: sudareva@imp.uran.ru
Russian Federation, ul. S. Kovalevskoi 18, Ekaterinburg, 620990