THE INFLUENCE OF FILAMENT SIZE AND ATMOSPHERE ON THE MICROSTRUCTURE AND J(C) OF ROUND MULTIFILAMENT BI2SR2CA1CU2OX WIRES

被引：25

作者：

MOTOWIDLO, LR

GALINSKI, G

OZERYANSKY, G

ZHANG, W

HELLSTROM, EE

SUMPTION, M

COLLINGS, T

机构：

[1] UNIV WISCONSIN, MADISON, WI 53706 USA

[2] BATTELLE MEM INST, COLUMBUS, OH 43201 USA

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1995年 / 5卷 / 02期

关键词：

D O I：

10.1109/77.402768

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：

Round multifilament Bi2Sr2Ca1Cu2Ox wires having 37 and 259 filaments fabricated by the oxide-powder-in-tube method were given a step solidification partial melt heat treatment in air and oxygen atmospheres. Significant improvement in the critical current density (Jc) and as high as 1.65 x 10(5) A/cm(2) at 4.2K zero field was obtained for samples treated in pure oxygen versus air anneals. Moreover, as the filament size decreased the J(c) increased. In this paper we will discuss the development of 2212 microstructure and its dependence on filament size and heat treatment atmosphere in round multifilament 2212 wires.

引用

页码：1162 / 1166

页数：5

共 16 条

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[2]

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