SYNTHESIS OF POLYCRYSTALLINE YBA2CU4O8 WITHOUT THE NEED OF HIGH OXYGEN-PRESSURE

被引：22

作者：

GUPTASARMA, P

PALKAR, VR

MULTANI, MS

机构：

[1] Tata Institute of Fundamental Research, Bombay

来源：

SOLID STATE COMMUNICATIONS | 1991年 / 77卷 / 10期

关键词：

D O I：

10.1016/0038-1098(91)90572-D

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Conventional methods of synthesis of the oxide ceramic superconductor YBa2Cu4O8 (1-2-4) require high oxygen pressure during synthesis and long heating schedules, making the process tedious and limited to a few groups. We report here the possibility of synthesis of 1-2-4 with a single firing in air. The technique involves formation, in solution, of a fine-particle-complex based precursor. The 1-2-4 phase then forms in air with a single firing of 30 minutes at 900-degrees-C and a T(c) of 79.6K. The presence of 1-2-4 is confirmed by structural studies and then by thermogravimetric analysis.

引用

页码：769 / 772

页数：4

共 19 条

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