Growth Process of the (2223) Phase in Pb-Added Bi-Sr-Ca-Cu-O
Growth Process of the (2223) Phase in Pb-Added Bi-Sr-Ca-Cu-O
复制标题
添加Pb的Bi-Sr-Ca-Cu-O中(2223)相的生长过程
DOI：
10.1143/jjap.28.l1171
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发表时间：
1989
期刊：
影响因子：
--
通讯作者：
Hideaki Kuwajima
中科院分区：
文献类型：
--
作者：
A. Oota;K. Ohba;A. Ishida;A. Kirihigashi;Kiyotoshi Iwasaki;Hideaki Kuwajima
The growth process of the (2223) phase in Bi-Sr-Ca-Cu-O has been studied for oxides with nominal composition Bi2Pb0.6Sr2Ca2Cu3Ox prepared by sintering at 835∼855°C for 5∼160 h in air. The partial melting which starts to occur at Tpm≃842°C enhances the growth rate of the (2223) phase and produces a nearly single phase within 40 h. However, it causes a disturbance in current paths and suppresses the value of Tc(ρ=0) below 100 K. The sample which has the highest Tc(ρ=0) and the nearly single (2223) phase is obtained by sintering at a temperature just below Tpm for a long period of time.
