Water reactivity of (Y,Ca)(Ba,La)2CU3Ox superconductors

被引：16

作者：

Kita, R ^{[1
]}

Osumi, F ^{[1
]}

机构：

[1] Shizuoka Univ, Grad Sch Sci & Engn, Fac Engn, Dept Elect & Elect Engn, Hamamatsu, Shizuoka 4328651, Japan

来源：

PHYSICA C | 2001年 / 357卷

关键词：

water reactivity; calcium; lanthanum; substitution;

D O I：

10.1016/S0921-4534(01)00366-5

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Water reactivity of Y1-zCazBa2-zLazCu3Ox (YCBLCO, 0 less than or equal to z less than or equal to 0.6) superconductors has been investigated employing R-T measurements, X-ray diffractometry and scanning electron microscopy. The stability of YCBLCO superconductors in water environments was increased with degree of cation cosubstitution up to z = 0.6. The YCBLCO sample with z = 0.6 showed slight change in resistivity, T-c and surface morphology after the water treatment over a period of 300 h. The enhanced stability seems to be attributed to the tetragonal structure in which oxygen in the Cu-O chain layer was randomly distributed. (C) 2001 Elsevier Science B.V. All rights reserved.

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收藏

页码：792 / 795

页数：4

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