Processing, properties and microstructure of melt-processed Bi-2212 thick films

被引:15
作者
Buhl, D. [1 ]
Lang, Th. [1 ]
Heeb, B. [1 ]
Gauckler, L. J. [1 ]
机构
[1] ETH, CH-8092 Zurich, Switzerland
来源
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1994年 / 235-40卷
关键词
D O I
10.1016/0921-4534(94)91226-2
中图分类号
O59 [应用物理学];
学科分类号
摘要
Bi-2212 thick films were produced by tape casting and partial melting on Ag-substrates. Highly aligned, almost single-phase microstructures throughout the oxide thickness of 20 mu m were achieved. Optimizing the processing parameters to increase the critical current density j(c) lead to current densities of 18'000 A/cm(2) at 77K/0T and 350'000 A/cm(2) at 4K/0T (1 mu V/cm criterion, magnetically measured). In this paper the influence of the processing parameters on microstructure and properties of the thick films is discussed.
引用
收藏
页码:3399 / 3400
页数:2
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