IMPROVEMENT OF STRAIN ENDURANCE OF CRITICAL-CURRENT OF SILVER-SHEATHED SUPERCONDUCTING TAPES BY REDUCING VOLUME FRACTION OF BI(PB)-SR-CA-CU-O OXIDE CORE

被引：48

作者：

OCHIAI, S ^{[1
]}

HAYASHI, K ^{[1
]}

OSAMURA, K ^{[1
]}

机构：

[1] KYOTO UNIV,GRAD SCH,KYOTO 606,JAPAN

来源：

CRYOGENICS | 1993年 / 33卷 / 10期

关键词：

BI-PB-SR-CA-CU-O; CRITICAL CURRENT DENSITY; PHYSICAL PROPERTIES;

D O I：

10.1016/0011-2275(93)90227-F

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

High T(c) Bi(Pb)-Sr-Ca-Cu-O core/silver sheath superconducting composite tapes with various volume fractions of oxide core (0.05-0.5) were prepared by the powder-in-tube method. The influence of the volume fraction of the oxide core on the strain endurance of the critical current density at 0 T at 77 K was investigated. It was demonstrated that the strain endurance of the critical current can be raised by reducing-the volume fraction of oxide, due to enhanced compressive residual strain in the oxide which is introduced during cooling from the heat treatment temperature to 77 K.

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页码：976 / 979

页数：4

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