Effect of CdO Addition on the Properties of Bi-contained Superconducting Thick Films Prepared from Rapidly Quenched Amorphous Materials
Effect of CdO Addition on the Properties of Bi-contained Superconducting Thick Films Prepared from Rapidly Quenched Amorphous Materials
复制标题
CdO添加对快淬非晶材料制备双含超导厚膜性能的影响
DOI：
10.2497/jjspm.35.974
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发表时间：
1988
期刊：
影响因子：
--
通讯作者：
Z. Nakagawa
中科院分区：
文献类型：
--
作者：
M. Yoshimura;T. Sung;Shigeru Arima;Y. Ohya;Sakae Tsutai;N. Ishizawa;H. Koinuma;Z. Nakagawa
Substitution of Cd for Ca in Bi2Sr2Ca2Cu3Oy has been studied by using rapid quenching after rapid melting technique. Amorphous materials containing a small amount of CaO phase were obtained as films with about 20 μm thickness. Annealing of the films for Bi2Sr2Ca2-xCdxOy at 870°C for 5 hr in air yielded a superconducting phase with co= 3.0 nm in the composition of x≤0.5. Tc(endpoint) increased and tailing of transition disappeared with increasing Cd contents. A maximum Tc(endpoint) value of 87 K was obtained at the composition of x=0.4. Further substitution of Cd for Ca brought about lowering in Tc, because a semiconducting phase with co = 2.5 nm was formed instead of co = 3.0 nm phase.
