PREPARATION OF YBBA2CU3O7-X BULK SUPERCONDUCTOR BY MELT GROWTH-PROCESS

Authors
MOCHIDA T TAKAHASHI M GOSHIMA S SAKAI N YOO SI MURAKAMI M
Citation
T. Mochida et al., PREPARATION OF YBBA2CU3O7-X BULK SUPERCONDUCTOR BY MELT GROWTH-PROCESS, Superlattices and microstructures, 21, 1997, pp. 37-39
Citations number
8
Categorie Soggetti
Physics, Condensed Matter
Journal title
Superlattices and microstructures → ACNP
ISSN journal
07496036
Volume
21
Year of publication
1997
Supplement
A
Pages
37 - 39
Database
ISI
SICI code
0749-6036(1997)21:<37:POYBSB>2.0.ZU;2-5
Abstract
YbBa2Cu3O7-x (Yb123) bulk superconductors were prepared by a melt grow th process under various oxygen partial pressures. The microstructure of melt-processed Yb123 was observed by scanning electron microscopy a nd optical microscopy. T-c and critical current density (J(c)) were me asured with a SQUID magnetometer. The size of Yb2BaCuO5 particles in t he YbBa2Cu3O7-x phase was about 1 to 10 mu m. The melt processed Yb123 sample showed T-c(onset) of 91.5 K and J(c) of 50,000 A/cm(2) at 77 K and 0 T. (C) 1997 Academic Press Limited.