Phase relations in the Bi-(Pb)-Sr-Ca-Cu-Sc-O system

Authors
Kazin, PE Zaitsev, DD Tret'yakov, YD Jansen, M
Citation
Pe. Kazin et al., Phase relations in the Bi-(Pb)-Sr-Ca-Cu-Sc-O system, INORG MATER, 37(10), 2001, pp. 1046-1050
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
INORGANIC MATERIALS
ISSN journal
00201685 → ACNP
Volume
37
Issue
10
Year of publication
2001
Pages
1046 - 1050
Database
ISI
SICI code
0020-1685(200110)37:10<1046:PRITBS>2.0.ZU;2-6
Abstract
The phase relations in the Bi-(Pb)-Sr-Ca-Cu-Sc-O system were studied near B i2Sr2CaCu2O8+delta (Bi-2212) and (Bi,Pb)(2)Sr2Ca2Cu3O10+delta (Bi-2223) bet ween 850 and 930 degreesC. The introduction of Sc led to the formation of a new compound Sr2ScBiO6, which coexisted with Bi-2212 and Bi-2223. Using cr ystallization from a peritectic melt at different cooling rates, we obtaine d Bi-2212 matrix composites containing finely dispersed Sr1.9Ca0.1ScBiO6 in clusions, with T-c attaining 89 K. The T-c of the Bi-2223-Sr1.9Ca0.1ScBiO6 superconducting ceramic prepared by solid-state sintering of a Bi-(Pb)-Sr-C a-Cu-Sc-O precursor was 108.5 K.