HIGH-RATE MELT-PROCESSED SM1BA2CU3O7-X BULK SUPERCONDUCTOR

Citation
M. Boffa et al., HIGH-RATE MELT-PROCESSED SM1BA2CU3O7-X BULK SUPERCONDUCTOR, Nuovo cimento della Societa italiana di fisica. D, Condensed matter,atomic, molecular and chemical physics, biophysics, 19(8-9), 1997, pp. 1025-1031
Citations number
9
Categorie Soggetti
Physics
ISSN journal
03926737
Volume
19
Issue
8-9
Year of publication
1997
Pages
1025 - 1031
Database
ISI
SICI code
0392-6737(1997)19:8-9<1025:HMSBS>2.0.ZU;2-E
Abstract
Samarium element has been substituted to yttrium in Y123 superconducti ng melt textured bulk samples in order to make the whole fabrication p rocess much faster. A preliminary comparison between directionally sol idified Y1Ba2Cu3O7-x and Sm1Ba2Cu3O7-x bulk bars fabricated with the h orizontal Bridgman method has been done. The different microstructural and superconducting features are studied by means of X-ray, SEM analy sis, ac and dc susceptibility measurements. The quality of Sm123 sampl es appears comparable with the Y123 one grown using an almost two orde rs of magnitude lower pulling rate.