MICROSTRUCTURE AND MAGNETIC-PROPERTIES OF ZONE MELT TEXTURED YBA2CU3O6+X WITH BASNO3 ADDITIONS

被引：22

作者：

MCGINN, P

CHEN, W

ZHU, N

VARANASI, C

TAN, L

BALKIN, D

机构：

[1] Center for Materials Science and Engineering, Department of Electrical Engineering, University of Notre Dame, Notre Dame

来源：

PHYSICA C | 1991年 / 183卷 / 1-3期

关键词：

D O I：

10.1016/0921-4534(91)90764-P

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of BaSnO3 additions on the microstructure and magnetic properties of zone melt textured YBa2Cu3O6+x (YBCO) wires has been investigated. BaSnO3 additions improve the magnetization properties over similarly textured YBCO wires in low fields, but do not show a noticeable improvement at higher fields (> 2 T). Microstructural effects of BaSnO3 include a reduction in size of 211 precipitates and a decrease in the YBCO platelet width. Magnetic critical current densities (J(c)) in excess of 8 X 10(4) A/cm2 in zero field, and 2.0 X 10(4) A/cm2 at 1 T are observed. The improvement in low field properties are observed to peak at a YBCO:BaSnO3 molar ratio of 3:1, and then degrade with additional BaSnO3 additions.

引用

页码：51 / 56

页数：6

共 20 条

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