Enhancement of J(c) by refinement of Nd4Ba2Cu2O10 particles in OCMG processed Nd-Ba-Cu-O system with Pt and CeO2 addition

Authors
Chauhan, HS Murakami, M
Citation
Hs. Chauhan et M. Murakami, Enhancement of J(c) by refinement of Nd4Ba2Cu2O10 particles in OCMG processed Nd-Ba-Cu-O system with Pt and CeO2 addition, MAT SCI E B, 65(1), 1999, pp. 48-53
Citations number
15
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY
ISSN journal
09215107 → ACNP
Volume
65
Issue
1
Year of publication
1999
Pages
48 - 53
Database
ISI
SICI code
0921-5107(19991029)65:1<48:EOJBRO>2.0.ZU;2-4
Abstract
We have melt-grown the Nd-Ba-Cu-O superconductor from the precursor with a composition of NdBa2Cu3Oy + 10% Nd4Ba2Cu2O10 + 0.5 wt% Pt + 1.0 wt% CeO2 in 0.1% O-2-Ar environment. A combined addition of Pt and CeO2 has resulted i n the refinement of Nd4Ba2Cu2O10 (Nd422) particles down to submicron size a s revealed by optical and transmission electron microscopic observations. A large enhancement of critical current density reaching 10(5) A cm(-2) in a self field at 77 K has been accomplished as a result of fine dispersion of Nd422. (C) 1999 Elsevier Science S.A. All rights reserved.