REACTIVE LIQUID-PHASE SINTERING OF SOLUTION-DERIVED YBA2CU3O7-X SUPERCONDUCTING THIN-FILMS .1. AMBIENT AND PRECURSOR EFFECTS ON BAO-CUO LIQUID-PHASE FORMATION

被引：47

作者：

CHU, PY

BUCHANAN, RC

机构：

[1] Department of Materials Science and Engineering, University of Illinois at Urbana—Champaign, Urbana, Illinois

来源：

JOURNAL OF MATERIALS RESEARCH | 1993年 / 8卷 / 09期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1557/JMR.1993.2134

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Processing atmosphere and precursor effects on liquid phase formation were investigated in the BaO-CuO thin film system. Liquid phase was observed at a significantly lower temperature (approximately 620-degrees-C) under N2 atmosphere with carboxylate solution precursors. In the processing of the YBCO oxide superconductors, formation of the liquid phase facilitated the decomposition of BaCO3 and crystallization of the YBCO grains. Larger grains and greater (00l) preferred orientation were also observed in the YBCO films prepared with the presence of the liquid phase.

引用

页码：2134 / 2142

页数：9

共 20 条

[1]

AHN BT, 1990, CERAMIC T SUPERCONDU, V13

[2] LIQUIDUS RELATIONS IN Y-BA-CU OXIDES [J].