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Proceedings Paper

Physico-chemical properties of ceramic high-temperature superconductors with an approximate average radius of rare earth ion(-s) obtained by a solid-state synthesis reaction
Author(s): Paweł Pęczkowski; Piotr Konieczny; Erazm M. Dutkiewicz; Cezariusz Jastrzębski; Piotr Zachariasz; Elżbieta Drzymała; Arkadiusz Zarzycki; Dariusz Bocian
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Paper Abstract

The REBa2Cu3O7-δ (where RE - rare earth element, 0 < δ < 1) superconductor (also called "RE-BCO” or "1:2:3”) is produced by calcination of a mixture of copper (II) oxide (CuO), barium carbonate (BaCO3) and yttrium (III) oxide (Y2O3) powders. The aim of the research was to study similarities and differences in physico-chemical properties for ceramic samples of high-temperature superconductors slightly differing in the average crystal ionic radiuses of RE3+. For this purpose a reference sample YBa2Cu3O7-δ was prepared, for which the average crystal radius of the ion Y3+ is 104.0 pm and two samples with approximate to that average crystal ionic radiuses RE3+: HoBa2Cu3O7-δ and Er0.5Dy0.5Ba2Cu3O7-δ, where the average crystal ionic radiuses are 104.1 pm. The physicochemical properties of samples were studied and the microstructure of samples was characterized. The structural and phase homogeneity analysis was carried out using Raman spectroscopy, Scanning Electron Microscopy (SEM) and X-Ray Diffraction (XRD) technique. Raman measurements and XRD measurements revealed the presence of a superconducting phase in all studied samples. The granulation analysis of the mixture substrates powders after first and second calcination was performed with use of the Low-Angle Laser Light Scattering (LALLS) method. The magnetic properties of the obtained samples were measured with a SQUID magnetometer. The temperature dependences of AC susceptibility were used to determine the temperature of transition to the superconducting state and the hysteretic energy dissipation due to losses at inter-grain region.

Paper Details

Date Published: 14 May 2019
PDF: 8 pages
Proc. SPIE 11054, Superconductivity and Particle Accelerators 2018, 110540J (14 May 2019); doi: 10.1117/12.2525446
Show Author Affiliations
Paweł Pęczkowski, Cardinal Stefan Wyszyński Univ. (Poland)
Piotr Konieczny, Institute of Nuclear Physics PAN (Poland)
Erazm M. Dutkiewicz, Institute of Nuclear Physics PAN (Poland)
Cezariusz Jastrzębski, Warsaw Univ. of Technology (Poland)
Piotr Zachariasz, Institute of Electronic Technology (Poland)
Elżbieta Drzymała, Institute of Nuclear Physics PAN (Poland)
Arkadiusz Zarzycki, Institute of Nuclear Physics PAN (Poland)
Dariusz Bocian, Institute of Nuclear Physics PAN (Poland)

Published in SPIE Proceedings Vol. 11054:
Superconductivity and Particle Accelerators 2018
Dariusz Bocian; Ryszard S. Romaniuk, Editor(s)

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