Effect of air-annealing on the solubility of Pb in the Bi2Sr2CaCu2O8+delta phase

被引：15
作者：
Grivel, JC
Gladyshevskii, RE
Walker, E
Flukiger, R
机构：
[1] Dept. de Phys. de la Matiere Cond., Université de Genève
来源：
PHYSICA C | 1997年 / 274卷 / 1-2期
关键词：
D O I：
10.1016/S0921-4534(96)00664-8
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The thermal stability of the (Bi,Pb)(2)Sr2CaCu2O8+delta phase in air has been studied by means of X-ray diffraction, SEM observations, DTA/TG and ac susceptibility measurements. It was found that the Pb segregation previously reported to occur around 700 degrees C is reversible upon further annealing in air at a higher temperature. It is shown that the kinetics of the segregation reaction are slow. The small structural modification in the (Bi,Pb)(2)Sr2CaCu2O8+delta phase induced by the change of Pb concentration is evidenced.
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页码：66 / 72
页数：7
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