EFFECTS OF OXYGEN PARTIAL-PRESSURE AND MECHANICAL DEFORMATION ON (TL,PB) (BA,SR)(2)CA2CU3OY AG-SHEATHED TAPES

Authors
SALAZAR KV PETERSON EJ HOLESINGER TG BINGHAM B COULTER JY SEBRING RJ VOIGT JA ROTH EP HALDAR P
Citation
Kv. Salazar et al., EFFECTS OF OXYGEN PARTIAL-PRESSURE AND MECHANICAL DEFORMATION ON (TL,PB) (BA,SR)(2)CA2CU3OY AG-SHEATHED TAPES, IEEE transactions on applied superconductivity, 5(2), 1995, pp. 1494-1497
Citations number
5
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE transactions on applied superconductivity → ACNP
ISSN journal
10518223
Volume
5
Issue
2
Year of publication
1995
Part
2
Pages
1494 - 1497
Database
ISI
SICI code
1051-8223(1995)5:2<1494:EOOPAM>2.0.ZU;2-F
Abstract
The powder in tube method was used to produce silver sheathed tapes of Tl0.78Pb0.5Ba0.4Sr1.6Ca2Cu3Oy. A precursor powder of Pb0.5Ba0.4Sr1.6C a2Ca3Oy (prepared via the hydroxycarbonate coprecipitation of the meta l ions from a stoichiometric nitrate solution) was thallinated and pac ked into a silver tube and processed into tape. The tape was then heat ed (in 100% oxygen or air) from 840 degrees C to 870 degrees C for var ious anneal times. The effects of different intermediate pressing stre sses during tape processing had dramatic effects on both the current-c arrying capacity and the tape microstructure. Variation of pO(2) also led to differences in current-carrying capacity I-c as did a roll subs tituted for a press during tape processing.