Microstructure and superconducting properties of YBCO bulk superconductors with RE substitutions

0466832 - FZÚ 2017 RIV US eng J - Journal Article
Volochová, D. - Antal, V. - Piovarči, S. - Kováč, J. - Jirsa, Miloš - Noudem, J. - Diko, P.
Microstructure and superconducting properties of YBCO bulk superconductors with RE substitutions.
IEEE Transactions on Applied Superconductivity. Roč. 26, č. 3 (2016), s. 1-4, č. článku 7200604. ISSN 1051-8223. E-ISSN 1558-2515
Institutional support: RVO:68378271
Keywords : yttrium barium copper oxide * critical current density (superconductivity) * powders * magnetic fields * microstructure * temperature measurement
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 1.583, year: 2016

The influence of RE (RE = Yb, Sm) substitutions on the microstructure and superconducting properties of Y-Ba-Cu-O (YBCO) bulk superconductors has been studied for different RE concentrations and their combinations. Precursor powders YBa2Cu3O7-δ (Y-123), Y2O3 and CeO2 were enriched with different amounts of Yb2O3 and (or) Sm2O3 powders with the aim to increase critical current density, i.e., Jc, in self-field as well as in higher magnetic fields, by introducing additional pinning centers. YBCO bulk superconductors with RE2O3 addition were prepared by the optimized top-seeded melt-growth process in the form of single grains.

Permanent Link: http://hdl.handle.net/11104/0265048