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

被引：2
|
作者：
Kazin, PE [1 ]
Zaitsev, DD
Tret'yakov, YD
Jansen, M
机构：
[1] Moscow MV Lomonosov State Univ, Moscow 119899, Russia
[2] Max Planck Inst Festkorperforsch, D-70569 Stuttgart 80, Germany
来源：
INORGANIC MATERIALS | 2001年 / 37卷 / 10期
关键词：
D O I：
10.1023/A:1012335328302
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The phase relations in the Bi-(Pb)-Sr-Ca-Cu-Sc-O system were studied near Bi(2)Sr(2)CaCu(2)O(8+delta) (Bi-2212) and (Bi,Pb)(2)Sr(2)Ca(2)Cu(3)O(10+delta) (Bi-2223) between 850 and 930 degreesC. The introduction of Sc led to the formation of a new compound Sr(2)ScBiO(6), which coexisted with Bi-2212 and Bi-2223. Using crystallization from a peritectic melt at different cooling rates, we obtained Bi-2212 matrix composites containing finely dispersed Sr(1.9)Ca(0.1)ScBiO(6) inclusions, with T(c) attaining 89 K. The T(c) of the Bi-2223-Sr(1.9)Ca(0.1)ScBiO(6) superconducting ceramic prepared by solid-state sintering of a Bi-(Pb)-Sr-Ca-Cu-Sc-O precursor was 108.5 K.
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收藏
页码：1046 / 1050
页数：5
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