INFLUENCE OF BACUO2 ON THE SINTERING AND THE PROPERTIES OF YBA2CU3O7-DELTA-BASED CERAMICS

被引：10

作者：

HEINTZ, JM

SANZ, M

MARQUESTAUT, E

ETOURNEAU, J

BONNET, JP

机构：

[1] Laboratoire de Chimie du Solide du Cnrs, Université Bordeaux 1, Talence

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1991年 / 74卷 / 05期

关键词：

SUPERCONDUCTORS; LIQUIDS; SINTERING; OXIDES; DENSITY;

D O I：

10.1111/j.1151-2916.1991.tb04334.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The preparation of YBa2Cu3O7-delta-based ceramics was made from a mixture of oxides taken in the molar proportions alpha:1:2 BaCuO2:Y2BaCuO5:CuO(0.95 less-than-or-equal-to alpha less-than-or-equal-to 3). The densification of the ceramics is strongly dependent on the initial amount of BaCuO2. The highest density is obtained when alpha = 1. All the ceramics present a superconducting transition. A sintering mechanism is proposed in which the densification is mainly governed by the appearance of a metastable BaCuO2-based liquid at around 900-degrees-C.

引用

页码：998 / 1002

页数：5

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