Relaxation of internal stresses in composite second-generation high-temperature superconductors by means of high energy ion irradiation

被引：6

作者：

Antonova, L. Kh. ^{[1
]}

Voronov, V. V. ^{[1
]}

Mikhailova, G. N. ^{[1
]}

Troitskiy, A. V. ^{[1
]}

Demikhov, T. E. ^{[2
]}

Didyk, A. Yu. ^{[3
]}

Suvorova, E. I. ^{[4
]}

机构：

[1] Russian Acad Sci, Prokhorov Inst Gen Phys, Moscow 119991, Russia

[2] Russian Acad Sci, Lebedev Inst Phys, Moscow 119991, Russia

[3] Joint Inst Nucl Res, Flerov Lab Nucl React, Dubna 141980, Moscow Region, Russia

[4] Russian Acad Sci, Shubnikov Inst Crystallog, Moscow 119333, Russia

来源：

PHYSICS OF METALS AND METALLOGRAPHY | 2013年 / 114卷 / 02期

关键词：

composite high-temperature superconductor; YBCO(123); ion irradiation; scanning electron microscopy; X-ray diffraction; CRITICAL PARAMETERS;

D O I：

10.1134/S0031918X13020026

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

In order to remove internal stresses in composite 2-G YBCO(123) high-temperature superconductors (HTS), they are irradiated with Ar-40(8+) ions with an energy of 48 MeV or Kr-84(17+) ions with an energy of 107 MeV and a fluence of (1-2) x10(10) ion/cm(2). Growth stresses in samples have been studied by scanning electron microscopy and X-ray diffraction analysis. It has been found that initial samples contain significant internal stresses, which, over the course of time, lead to the destruction of the superconducting layer. These stresses disappear after ion irradiation in the regimes specified. Possible mechanisms of stress relaxation are discussed.

引用

页码：145 / 147

页数：3

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