DEPENDENCE OF CRITICAL-CURRENT DENSITY ON FILAMENT DIAMETER IN ROUND MULTIFILAMENT AG-SHEATHED BI2SR2CACU2OX WIRES PROCESSED IN O-2

Authors
MOTOWIDLO LR GALINSKI G OZERYANSKY G ZHANG W HELLSTROM EE
Citation
Lr. Motowidlo et al., DEPENDENCE OF CRITICAL-CURRENT DENSITY ON FILAMENT DIAMETER IN ROUND MULTIFILAMENT AG-SHEATHED BI2SR2CACU2OX WIRES PROCESSED IN O-2, Applied physics letters, 65(21), 1994, pp. 2731-2733
Citations number
4
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
65
Issue
21
Year of publication
1994
Pages
2731 - 2733
Database
ISI
SICI code
0003-6951(1994)65:21<2731:DOCDOF>2.0.ZU;2-2
Abstract
Ag-sheathed Bi2Sr2CaCuOx round wires having 37 and 259 filaments, with filament diameters ranging from 11 to 100 mu m, were fabricated by th e oxide-powder-in-tube method. They were heat treated using step-solid ification melt processing in air and pure O-2. The transport critical current density was highest in wires processed in pure O-2. It increas ed with decreasing filament diameter and was highest [165 000 A/cm(2) (4.2 K, O T)] in wires with 11 mu m filaments processed in O-2.