PROPERTIES OF BI-SR-CA-CU-O HIGH-TC SUPERCONDUCTOR

被引:0
|
作者
NAIDU, BS
REDDY, BJ
REDDY, YP
REDDY, PJ
机构
[1] Department of Physics, Sri Venkateswara University, Tirupati
关键词
HIGH-TC SUPERCONDUCTOR; ANNEALING CONDITIONS; SOLID-STATE REACTION; STRUCTURE; RESISTIVITY; AC SUSCEPTIBILITY;
D O I
10.1007/BF02747317
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The effect of sintering in air and annealing in oxygen flow at various temperatures and times on the superconducting transition of Bi2Sr2Ca1Cu2O8 ceramic was studied. Samples sintered at 1138 K for 24 h in air and slowly-cooled to room temperature are single-phase with the highest zero resistivity temperature of 88 K. XRD pattern showed that the single-phase was characteristic of tetragonal structure with a = 0.5398 nm and c = 3.0620 nm. Both a.c. susceptibility and resistivity measurments give similar values for the onset (100 K) of superconducting transition.
引用
收藏
页码:211 / 216
页数:6
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