EFFECTS OF HEAT-TREATMENT ON THE SUPERCONDUCTING PROPERTIES OF BI2SR2CACU2OX FIBERS PRODUCED BY THE LASER-HEATED PEDESTAL GROWTH METHOD

被引:6
作者
BRENNER, JM [1 ]
FEIGELSON, RS [1 ]
GAZIT, D [1 ]
PESZKIN, PN [1 ]
机构
[1] STANFORD UNIV,DEPT MAT RES,STANFORD,CA 94305
来源
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 1990年 / 5卷 / 03期
基金
美国国家科学基金会;
关键词
D O I
10.1016/0921-5107(90)90099-W
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The effect of a post-growth heat treatment procedure on Bi2Sr2CaCu2Ox fibers produced at different growth rates by the laser-heated pedestal growth method has been investigated. Microstructural studies reveal that the non-superconducting metastable phases formed at high growth rates are converted via a solid state reaction into the superconducting phase. Magnetometer and transport studies show superconducting transitions in fast-grown, heat-treated fibers which originally were non-superconducting in their as-grown condition. Some enhancement in properties is also seen in slower-grown fibers compared to their as-grown condition. © 1990.
引用
收藏
页码:351 / 357
页数:7
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