Phase formation and microstructure in Re1-x CaxBa2Cu3Oz (Re=Y, Eu, Er; x=0, 0.2, 0.3) superconducting ceramics-Reference-Cited by-同舟云学术

Phase formation and microstructure in Re1-x CaxBa2Cu3Oz (Re=Y, Eu, Er; x=0, 0.2, 0.3) superconducting ceramics

Published:2006-03-01 Issue:1 Volume:4 Page:166-173
ISSN:2391-5420
Container-title:Open Chemistry
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Author:

Stoyanova-Ivanova A.K.¹,Terzieva S.D.¹,Staneva A.D.²,Mikli V.³,Traksmaa R.³,Dimitriev Y.B.²,Kovachev V.T.¹

Affiliation:

1. 1Institute of Solid State Physics, Bulgarian Academy of Science, 72 Tzarigradsko Chaussee Blvd., 1784, Sofia, Bulgaria

2. 2Department of Silicate Technology, University of Chemical Technology and Metallurgy, 8 Kl. Ohridski, 1756, Sofia, Bulgaria

3. 3Centre for Materials Research, Tallin Technical University, Ehitajate 5, Tallin, 19086, Estonia

Abstract

AbstractWe have investigated the influence of Ca-substitution and different rare earths on the microstructure of RE1-x CaxBa2Cu3O7-δ (RE= Y, Eu, Er; x=0, 0.2, 0.3) superconducting ceramics. Scanning electron microscopy, X-ray microanalysis and energy dispersive spectroscopy have been used to study the microstructure and the chemical composition of the samples. A correlation was established between the polycrystalline microstructure and phase formation depending on the additive content. We observed that calcium is distributed uniformly in the crystals. The formation of minor impurity phases improved the sintering conditions.

Publisher

Walter de Gruyter GmbH

Subject

Materials Chemistry,General Chemistry

Link

https://www.degruyter.com/downloadpdf/journals/chem/4/1/article-p166.xml

Reference14 articles.

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