Coarsening of BaCeO₃ and Y₂BaCuO₅ Particles in YBa2Cu3O7-x Semisolid Melt
In an attempt to enhance the critical current density in melt textured YBa2Cu3O7-x (Y123), coarsening behavior of non-superconducting inclusions in the semisolid melt of YBa2Cu 3O7-x was investigated. Coarsening behavior of BaCeO 3 was compared with that of Y2BaCuO5 (Y211) particles above the peritectic decomposition temperature as a function of time. Microstructural characterization of the quenched samples revealed a significant coarsening of Y211 phase, while the size of BaCeO3 particles remained in the sub-micrometer range.
O. Jongprateep and F. Dogan, "Coarsening of BaCeO₃ and Y₂BaCuO₅ Particles in YBa2Cu3O7-x Semisolid Melt," Ceramic Transactions, American Ceramic Society, Jan 2005.
Materials Science and Engineering
Keywords and Phrases
Yttrium Compounds; Decomposition Temperature; Doping (Additives); High Critical Current Density; Peritectic Decomposition; Sub-Micrometere Range; Substrates; Superconducting Materials
Library of Congress Subject Headings
High temperature superconductors
Scanning electron microscopy
Article - Journal
© 2005 American Ceramic Society, All rights reserved.