SYNTHESIS OF HIGH-TC DUAL-PHASE AG-YBA2CU3O7-X SUPERCONDUCTOR COMPOSITE POWDERS BY SOL-GEL PROCESS

被引：7

作者：

AGARWALA, MK

BOURELL, DL

PERSAD, C

机构：

[1] Center for Materials Science and Engineering, University of Texas at Austin, Austin, Texas

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1992年 / 75卷 / 07期

关键词：

D O I：

10.1111/j.1151-2916.1992.tb07226.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 [材料科学与工程]; 080502 [材料学];

摘要：

Fine, homogeneous, dual-phase Ag-YBa2Cu3O7-x composite powders were prepared by a simple colloidal sol-gel coprecipitation technique that was previously used for synthesis of single-phase YBa2Cu3O7-x. Samples containing up to 60 wt% silver were synthesized. Silver neither reacted with nor degraded the YBa2Cu3O7-x. The presence of silver was found to aid the oxygenation of the precursor during calcination to form orthorhombic YBa2Cu3O7-x. Measurements made by ac magnetic susceptibility showed no significant degradation in transition temperature for samples containing up to 40 wt% silver.

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页码：1975 / 1977

页数：3

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