THE INCREASE OF PINNING IN (BI, PB)2SR2CA2CU3O10+D BULK CERAMICS

被引：33
|
作者：
MAJEWSKI, P [1 ]
ELSCHNER, S [1 ]
HETTICH, B [1 ]
LANG, C [1 ]
KAESCHE, S [1 ]
ALDINGER, F [1 ]
机构：
[1] HOECHST AG,ZENT FORSCH 2,D-65926 FRANKFURT,GERMANY
来源：
SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1994年 / 7卷 / 07期
关键词：
D O I：
10.1088/0953-2048/7/7/012
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Considering the phase equilibrium diagram of the Bi2O3-PbO-SrO-CaO-CuO system, ceramics of the 2223 phase with the composition Bi1.8Pb0.4Sr2Ca2CU3O10+d have been transformed by a simple annealing procedure into multi-phase samples. The transformation results in a four-fold increase of the critical current density at 2 T and 30 K (three-fold at 1 T and 50 K), which is believed to express an enhanced pinning capacity of the material. The nature of the pinning centres produced is not yet clarified.
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页码：514 / 517
页数：4
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