Influence of BaCeO3 and BaO2 Addition on the Microstructure of Y-123/Y-211 Bulk Superconductors

Katarina Zmorayova; Samuel Piovarči; Monika Radusovska; Vitaliy Antal; Pavel Diko

doi:10.4028/www.scientific.net/MSF.782.549

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HomeMaterials Science ForumMaterials Science Forum Vol. 782Influence of BaCeO3 and BaO2 Addition on the...

Influence of BaCeO₃ and BaO₂ Addition on the Microstructure of Y-123/Y-211 Bulk Superconductors

Abstract:

YBCO (YBa₂Cu₃O₇/ Y₂BaCuO₅) bulk single-grain superconductors were prepared by Top-Seeded Melt-Growth (TSMG) process. CeO₂, BaCeO₃ and BaO₂ powders were added to nominal composition Y_1.5Ba₂Cu₃O_y (Y-123) with the aim to refine Y₂BaCuO₅ (Y-211) secondary particles, which provide pining. Added powders were refined by friction milling. The system behaviour was characterized by thermal analyses. Microstructure of prepared samples was studied by polarized light microscopy and the influence of additions is described.

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Periodical:

Materials Science Forum (Volume 782)

Pages:

549-552

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.782.549

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Online since:

April 2014

Authors:

Katarina Zmorayova*, Samuel Piovarči, Monika Radusovska, Vitaliy Antal, Pavel Diko

Keywords:

BaCeO₃, BaO₂, Microstructure, YBCO Superconductor

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