Top seeding melt texture growth of NdBaCuO pellets in air

被引：6

作者：

Guilmeau, E ^{[1
]}

Giovannelli, F ^{[1
]}

Monot-Laffez, I ^{[1
]}

Marinel, S ^{[1
]}

Provost, J ^{[1
]}

Desgardin, G ^{[1
]}

机构：

[1] ISMRA, CRISMAT Lab, CNRS, UMR 6508, F-14050 Caen, France

来源：

EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS | 2001年 / 13卷 / 03期

关键词：

D O I：

10.1051/epjap:2001128

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Most of NdBaCuO synthesis were realized under oxygen controlled melt growth (OCMG) which allows to avoid the solid solution formation. However, for industrial applications air synthesis is preferable due to its simplicity and its cost. In this work, different seeds and thermal cycles have been investigated in order to optimize the nucleation conditions for the obtention of a single domain. Several criteria have been defined for the choice of the seed. The solid solution Nd1+xBa2-xCu3Oy formed in these air synthesised samples appears in the range of x = 0.10 to 0.15, corresponding to T-conset between 60 K and 80 K. The nominal composition and the synthesis conditions (substrate, thermal treatments.) have to be accurately defined in order to avoid neodymium-rich solid solution formation.

引用

页码：157 / 160

页数：4

共 12 条

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