Effect of nanoscopic ZrO2 particles on flux pinning in (Nd, Eu, Gd)-123/Gd-211 composites

被引：12
作者：
Muralidhar, M
Sakai, N
Jirsa, M
Mirakami, M
Koshizuka, N
机构：
[1] Int Superconduct Technol Ctr, SRL, Morioka, Iwate 0200852, Japan
[2] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
[3] Shibaura Inst Technol, Minato Ku, Tokyo 1088548, Japan
来源：
SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2004年 / 17卷 / 10期
关键词：
D O I：
10.1088/0953-2048/17/10/007
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We investigated the effect of ZrO2 addition on superconducting and magnetic properties of oxygen-controlled-melt-growth- (OCMG-) processed (Nd0.33Eu0.33Gd0.33)Ba2Cu3Oy (NEG-123) bulk material. The purpose of this study was to ascertain whether the ZrO2 particles are able to improve flux pinning even without entering into reaction with NEG-123 and Gd2BaCuO5 (Gd-211) phases. We observed the expected effect but only at a relatively low concentration of ZrO2. The best flux pinning was observed in the sample with 0.29 wt% ZrO2. No trace of Zr was found in the NEG-123 matrix. Our study demonstrates the potential of ZrO-(2) particles in enhancing flux pinning in melt-processed REBa2Cu3Oy (RE-123).
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页码：1129 / 1132
页数：4
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