THE ROLE OF BACO3 IN HIGH-TEMPERATURE SYNTHESIS OF ELECTRONIC MATERIALS

被引：7

作者：

MALECKI, A

OBLAKOWSKI, J

LABUS, S

机构：

[1] Department of Inorganic Chemistry, Faculty of Materials Science and Ceramics, University of Mining and Metallurgy, 30-059 Kraków

来源：

MATERIALS RESEARCH BULLETIN | 1995年 / 30卷 / 06期

关键词：

BARIUM CARBONATE; SUPERCONDUCTIVITY; YBCO;

D O I：

10.1016/0025-5408(95)00050-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The syntheses of superconducting YBCO powders, prepared by solid state reaction, vacuum pyrolysis of acetates, spray pyrolysis of acetates and calcinated oxalates were performed. All of the powders in a paste form were deposited on the Al2O3 substrate. After sintering and annealing the obtained superconducting YBCO thick layers were examined in different (CO2 + O-2) atmospheres. The thermogravimetric as well as IR spectroscopy and SEM study confirm that on the grain boundaries the BaCO3 phase is formed. The presence of BaCO3 phase may cause degradation of superconducting materials.

引用

页码：731 / 737

页数：7

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