ENHANCED JC PROPERTIES IN SUPERCONDUCTING NBTI COMPOSITES BY INTRODUCING NB ARTIFICIAL PINS WITH A LAYERED STRUCTURE

被引：39

作者：

MATSUMOTO, K

TAKEWAKI, H

TANAKA, Y

MIURA, O

YAMAFUJI, K

FUNAKI, K

IWAKUMA, M

MATSUSHITA, T

机构：

[1] FURUKAWA ELECT CORP LTD,DEPT SUPERCOND PROD,NIKKO 32114,JAPAN

[2] KYUSHU UNIV,FAC ENGN,HIGASHI KU,FUKUOKA 812,JAPAN

[3] KYUSHU INST TECHNOL,FAC COMP SCI & SYST ENGN,IIZUKA 820,JAPAN

来源：

APPLIED PHYSICS LETTERS | 1994年 / 64卷 / 01期

关键词：

D O I：

10.1063/1.110896

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

High critical current densities (4250 A/mm2 at 5 T, 4.2 K, and 15 000 A/mm2 at 2 T, 4.2 K) were achieved by using an artificially designed pin structure composed of randomly oriented clusters of Nb/NbTi multilayer in a NbTi composite superconductor (with a round cross section). The maximum values were obtained when the Nb layer thickness was designed to be approximately twice the coherence length in NbTi, where the layer thickness is five to ten times thicker than that of the optimized alpha-Ti ribbon thickness in a conventional NbTi system.

引用

页码：115 / 117

页数：3

共 13 条

[1]

Chengren L., 1987, CRYOGENICS, V27, P171

[2] STRONGLY ENHANCED CRITICAL CURRENT-DENSITY IN NB-47-WT-PERCENT-TI HAVING A HIGHLY ALIGNED MICROSTRUCTURE [J].