THE PREPARATION OF TL-1223 SUPERCONDUCTORS AND AG-SHEATHED TAPES

被引：14
|
作者：
PENG, HT [1 ]
PENG, QY [1 ]
LUNG, XY [1 ]
ZHOU, SH [1 ]
QI, ZW [1 ]
WU, YS [1 ]
CHEN, JP [1 ]
ZHONG, Y [1 ]
CUI, BS [1 ]
FANG, JR [1 ]
CAO, GH [1 ]
机构：
[1] UNIV SCI & TECHNOL BEIJING,DEPT MAT PHYS,BEIJING 100083,PEOPLES R CHINA
来源：
SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1993年 / 6卷 / 11期
关键词：
D O I：
10.1088/0953-2048/6/11/006
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The preparation of Tl-1223 superconductor by the partial melted method is studied. The nominal composition of the sample is (Tl0.5Pb0.5) (Sr0.8Ba0.2)2Ca2Cu3Oy. The magnetizing current of the sintered-partial melted-annealed sample is greater than 2 x 10(4) cm2 at 77 K and 1 T. The J(c) value of the short sample of the Ag-sheathed tape made of the powder produced by this method reaches 1.9 x 10(4) A cm-2 at 77 K and 0 T. The SEM microscopic observation of the cross section of the superconducting tape shows that besides the 1223 phase, there are impurity phases of BaPbO3 and Sr-Ca-Cu-O.
引用
收藏
页码：790 / 794
页数：5
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