CRITICAL-CURRENT DENSITY OF POLYCRYSTALLINE YBA2CU3O7-DELTA CONSISTING OF TIN-COATED GRAINS

Authors
ZHENG XG MIZUTA N KURIYAKI H HIRAKAWA K
Citation
Xg. Zheng et al., CRITICAL-CURRENT DENSITY OF POLYCRYSTALLINE YBA2CU3O7-DELTA CONSISTING OF TIN-COATED GRAINS, Physica. C, Superconductivity, 230(3-4), 1994, pp. 306-310
Citations number
7
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
230
Issue
3-4
Year of publication
1994
Pages
306 - 310
Database
ISI
SICI code
0921-4534(1994)230:3-4<306:CDOPYC>2.0.ZU;2-Q
Abstract
Tin and its oxides have been introduced into the intergrain areas of p olycrystalline YBa2Cu3O7-delta by coating the crystalline grains with a thin layer of tin and sintering the ceramics in flowing oxygen and a rgon. The transport critical current density J(c) at 77 K in a magneti c field of 0-1.5 T is enhanced as a result of the coating. A probable improvement of the intergrain weak links is suggested.