Synthesis of Nanocrystalline BaCeO₃ by Oxalate Coprecipitation for YBa₂Cu₃O₇ Bulk Superconductors

• Authors: R. Verbová , V. Kavečanský , P. Diko , V. Antal
• Languages of publication: EN

Abstracts

EN

Barium cerate (BaCeO₃) is one of the preferred additions to bulk YBa₂Cu₃O₇ single-grain superconductors to inhibit the growth of Y₂BaCuO₅ particles. The present paper investigates synthesis of very fine barium cerate powder and its use in YBa₂Cu₃O₇ bulk superconductor growth. The crystalline barium cerate was synthesized by oxalate co-precipitation from barium and cerium nitrates. X-ray diffraction in air and vacuum was performed to understand the formation of barium cerate as well as to determinate its crystal structure. Size and shape of BaCeO₃ particles were studied by scanning electron microscopy. The BaCeO₃ was used to grow YBa₂Cu₃O₇ bulk superconductor. Microstructure of prepared YBa₂Cu₃O₇ crystal shows that the barium cerate in the final product is very fine and uniformly distributed throughout the whole YBa₂Cu₃O₇ crystal.

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2018
• Volume: 133
• Issue: 1
• Pages: 82-85

Dates

published

2018-01

received

2017-03-31

(unknown)

2017-11-27

Contributors

author

R. Verbová

• Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, Košice, Slovakia

author

V. Kavečanský

• Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, Košice, Slovakia

author

P. Diko

• Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, Košice, Slovakia

author

V. Antal

• Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, Košice, Slovakia

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Identifiers

DOI

10.12693/APhysPolA.131.82