Abstract

Improvement of superconducting properties, such as critical current density Jc and trapped magnetic field, of melt textured YBa2Cu3O7-x (Y123) require introducing of effective pinning sites, e.g., nonsuperconducting inclusions, twin boundaries and other defects. It has been shown that addition of small quantities of BaCeO3 (<0.5 wt%) into Y123 results in an increase of the Jc. However, higher cerium concentrations affect the solidification process and inhibit the growth of melt textured Y123 single crystals. In this study, the effect of BaCeO3 additions on the growth and microstructural development of melt textured Y123 single crystals were investigated. The relationship between the solidification kinetics, microstructural development and superconducting properties of Y123 melt textured single crystals with cerium additives is discussed.

Department(s)

Materials Science and Engineering

Sponsor(s)

Boeing Company. Phantom Works
University of Missouri--Rolla. Materials Research Center

Keywords and Phrases

Y123; Critical Current Density

Library of Congress Subject Headings

Cerium oxides

International Standard Serial Number (ISSN)

1051-8223

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2005 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

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