Effect of ZrO2BaZrO3 addition on the microstructure and superconducting properties of melt processed NdBa2Cu3O7-δ

被引：9
|
作者：
Matsui, M [1 ]
Sakai, N [1 ]
Nariki, S [1 ]
Murakami, M [1 ]
机构：
[1] Int Superconduct Technol Ctr, Superconduct Res Lab, Minato Ku, Tokyo 1050023, Japan
来源：
PHYSICA C | 2001年 / 357卷 / SUPPL. 2期
关键词：
Nd-Ba-Cu-O; Zr addition; segregation;
D O I：
10.1016/S0921-4534(01)00320-3
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We investigated the microstructure and superconducting properties of the Nd-Ba-Cu-O with 0-1.0 wt.% ZrO2 and 0-2.24 wt.% BaZrO3 synthesized by the oxygen-controlled melt-growth process in 1% O-2-Ar atmosphere. The microstructure of Zr-added NdBCO was not homogeneous, and one could observe the segregation of Nd422 particles, the residual liquid phase including the agglomeration of BaZrO3 particles and the Nd422-free regions. Such inhomogeneity is caused by the strong influence of BaZrO3 on the solid/liquid interfacial energy during the melt growth. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：697 / 701
页数：5
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