THE INCREASE OF THE CRITICAL-CURRENT DENSITY OF YBA2CU3O7-Y BY A MODIFIED MELT-TEXTURED-GROWTH METHOD

Authors
CHOI CH ZHAO Y SORRELL CC LAROBINA M ANDRIKIDIS C
Citation
Ch. Choi et al., THE INCREASE OF THE CRITICAL-CURRENT DENSITY OF YBA2CU3O7-Y BY A MODIFIED MELT-TEXTURED-GROWTH METHOD, Physica. C, Superconductivity, 269(3-4), 1996, pp. 306-312
Citations number
22
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
269
Issue
3-4
Year of publication
1996
Pages
306 - 312
Database
ISI
SICI code
0921-4534(1996)269:3-4<306:TIOTCD>2.0.ZU;2-I
Abstract
A modified melt-textured-growth (MTG) method which has a relatively lo w working temperature and short reaction time compared with the conven tional MTG method has been developed. The number of YBa2Cu3O7-y (123) nuclei during the initial slow-cooling process has been minimized whic h leads to the enhancement of the 123 grain growth rate and a better h omogenized and smaller Y2BaCuO5 (211) particles over the samples. Magn etization measurement shows that the 123 crystals have a high J(c) and a good performance in high magnetic fields.