RECRYSTALLIZATION OF 110-K HIGH-TC BI2SR2CA2CU3OX SUPERCONDUCTING PHASE FROM THE MOLTEN STATE AND CHARACTERIZATIONS

被引：4

作者：

MOON, BM

KORDAS, G

LALEVIC, B

机构：

[1] UNIV ILLINOIS,DEPT MAT SCI & ENGN,DIV CERAM,URBANA,IL 61801

[2] RUTGERS STATE UNIV,DEPT ELECT & COMP ENGN,PISCATAWAY,NJ 08855

来源：

MATERIALS LETTERS | 1990年 / 9卷 / 12期

关键词：

High Temperature Superconductors;

D O I：

10.1016/0167-577X(90)90103-S

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the formation of the 110 K (Bi, Pb)SrCaCuO superconducting phase from a molten state via rapid thermal melt processing techniques. Sintered superconducting specimens were melted at 1200 ° C for 2 min using a rapid thermal furnace. Following the melting, the specimens were heat treated at 861 ° C for different periods of time in order to optimize recrystallization conditions. We achieved a zero transition temperature of 105 K with a ΔTc of 10 K for an annealing time of 240 h. The Jc of melt-grown samples is twice the value of conventionally sintered samples. An increase in the bulk density from 4.75 to 5.60 g/cm3 has been achieved using this process. © 1990.

引用

页码：533 / 536

页数：4

共 6 条

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