Development of a synthesis technique and characterization of Bi2Sr2CaCu2-O8+δ whiskers

被引：15

作者：

Hatano, T

Takano, Y

Fukuyo, A

Arisawa, S

Ishii, A

Togano, K

机构：

[1] Natl Res Inst Met, Tsukuba, Ibaraki 305, Japan

[2] Sci Univ Tokyo, Fac Sci & Technol, Noda, Chiba 2788510, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2001年 / 11卷 / 01期

关键词：

crystal growth; Bi-Sr-Ca-Cu-O; in-situ optical microscope observation; in-situ x-ray diffraction; whisker;

D O I：

10.1109/77.919655

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A synthesis technique of Bi2Sr2CaCu2O8+delta single-crystal whiskers has been studied. The whiskers were synthesized by annealing melt-quenched glassy Bi-Sr-Ca-Cu-O (3:2:2:4 in cationic ratio) plates, which were rapidly quenched from 1100-1200 degreesC. The growth condition and mechanism of the Bi2Sr2CaCu2O8+delta whiskers were investigated by an in-situ high-temperature x-ray diffraction analysis and an in-situ high-temperature microscope observation, It was found that the whiskers grow in a partially melted state at a temperature of 10-40 degrees below the melting point. The result obtained demonstrates that Bi2Sr2CaCu2O8+delta whiskers grow at their bottom by the conventional liquid-phase growth mechanism, as was proposed by Matsubara et al, [1].

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收藏

页码：2846 / 2849

页数：4

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