Effects of processing variables on the magnetic properties of melt-processed YBa2Cu3Ox

被引：7

作者：

Yeung, SC ^{[1
]}

Yang, HF ^{[1
]}

McGinn, PJ ^{[1
]}

机构：

[1] Univ Notre Dame, Dept Chem Engn, Notre Dame, IN 46556 USA

来源：

PHYSICA C | 1997年 / 290卷 / 3-4期

关键词：

grain alignment (texturing); crystal growth; YBa2Cu3O6+x; BaCuO2;

D O I：

10.1016/S0921-4534(97)01691-2

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Samples of YBa2Cu3Ox, (Y123) with excess Y2BaCuO5 (Y211) in the molar ratio of 5:1 (Y123/Y211) were processed using the SLMG ('solid-liquid melt growth') technique. The effects of precursor particle size, thermal pretreatment, and substrate choice were examined, Particle size was shown to accelerate degradation of the BaCuO2 precursor. Thermal pretreatment resulted in reduction of porosity in the samples and hence improved magnetic properties, Contamination by carbon and magnesium from the substrates was also examined and eliminated by using BaZrO3 substrates. (C) 1997 Elsevier Science B.V.

引用

页码：334 / 344

页数：11

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