DENSIFICATION EFFECT ON THE MICROSTRUCTURE AND CRITICAL-CURRENT DENSITY IN (BI,PB)(2)SR2CA2CU3OXAG SHEATHED TAPE

被引：76

作者：

SATOU, M ^{[1
]}

YAMADA, Y ^{[1
]}

MURASE, S ^{[1
]}

KITAMURA, T ^{[1
]}

KAMISADA, Y ^{[1
]}

机构：

[1] SHOWA ELECT WIRE & CABLE CO LTD,KAWASAKI KU,KAWASAKI 210,JAPAN

来源：

APPLIED PHYSICS LETTERS | 1994年 / 64卷 / 05期

关键词：

D O I：

10.1063/1.111074

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The density of oxide core in (Bi,Pb)(2)Sr2Ca2Cu3OxAg sheathed tape was estimated from Vickers hardness and found to be increased to as high as 93% of the theoretical density with increasing the degree of cold working. During heat treatment, this densification before heat treatment promoted the formation of a strong linked microstructure which is characterized by dense microstructure, a high degree of orientation of oxide crystal and smooth interface between the Ag sheath and oxide core. Consequently, we obtained high values of critical current density: 66 000 A/cm(2) at O T and 14 500 A/cm(2) at 1 T for 77 K.

引用

页码：640 / 642

页数：3

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