COMPOSITION STUDIES FOR AG-SHEATHED BI2SR2CACU2O8 CONDUCTORS PROCESSED IN 100-PERCENT O-2

Authors
ZHANG W GOODILIN EA HELLSTROM EE
Citation
W. Zhang et al., COMPOSITION STUDIES FOR AG-SHEATHED BI2SR2CACU2O8 CONDUCTORS PROCESSED IN 100-PERCENT O-2, Superconductor science and technology, 9(3), 1996, pp. 211-217
Citations number
16
Categorie Soggetti
Physics, Applied","Physics, Condensed Matter
Journal title
Superconductor science and technology → ACNP
ISSN journal
09532048
Volume
9
Issue
3
Year of publication
1996
Pages
211 - 217
Database
ISI
SICI code
0953-2048(1996)9:3<211:CSFABC>2.0.ZU;2-I
Abstract
We have melt-processed a series of Ag-sheathed Bi2Sr2CaCu2O8 tapes wit h compositions ranging from 2.18-2.0:2:1:1.9-2.0 (Bi:Sr:Ca:Cu) in 100% O-2 (P-tot = 1 atm). These compositions were chosen since changing th e Bi and Cu content varied the volume fraction of (Sr,Ca)(14)Cu24Ox an d Bi-2(Sr,Ca)(4)O-x in the melt, which affected their volume fraction in fully processed tape. The composition 2.1:2:1:1.95 yielded the most homogeneous, highly aligned microstructure in fully processed tape an d also had the highest J(c).