The influence of initial composition and oxygen partial pressure on the properties of melt-textured NdBaCuO

被引：68

作者：

Bieger, W

Krabbes, G

Schatzle, P

Zelenina, L

Wiesner, U

Verges, P

机构：

[1] INST FESTKORPER & WERKSTOFFORSCH EV,D-01171 DRESDEN,GERMANY

[2] RUSSIAN ACAD SCI,INST INORGAN CHEM,SIBERIAN BRANCH,NOVOSIBIRSK 630090,RUSSIA

来源：

PHYSICA C | 1996年 / 257卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(96)00706-X

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The influence of several admixtures on the microstructure formation and the superconducting properties is explained on the base of phase-equilibrium considerations. Conditions are derived which permit the stabilization of Ba rich Nd-123 phase to occur which is a precondition for preparing textured NdBaCuO materials with T-c> 90 K and a sufficient high j(c). A melt-textured bulk material with T-c = 91 K and j(c)(77 K, 0 T, B parallel to c) = 21.8 kA/cm(2) was produced at p(O-2) approximate to 100 Pa using an initial mixture consisting of NdBa2Cu3O7-delta and Nd2BaO4.

引用

页码：46 / 52

页数：7

共 9 条

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