AG-DOPED 120-K YBA2CU3O7-DELTA SUPERCONDUCTORS PREPARED BY THE FLAME-QUENCH-MELT-GROWTH (FQMG) METHOD

被引：11

作者：

YANMAZ, E

MUTLU, IH

KUCUKOMEROGLU, T

ALTUNBAS, M

机构：

[1] Dept. of Phys., Karadeniz Tech. Univ., Trabzon

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 1994年 / 7卷 / 12期

关键词：

Flame quench melt growth (FQMG) method - Silver doped yttrium barium copper oxides;

D O I：

10.1088/0953-2048/7/12/004

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of Ag-doping on the microstructure and physical properties of YBa2Cu3O7-delta superconductors prepared by a flame-quench-melt-growth (FQMG) process, was investigated. Pellets of YBa2Cu3O7-delta containing 0-30 weight percentage (wt.%) of Ag were quenched by LPG-O-2 flame melting and then crushed to obtain powder which was compacted and then subjected to a melt-growth process. As a result of this process, large grained, textured YBCO material was produced. It was found that YBCO samples with 10 wt.% Ag doped showed a transition temperature of 120 K and further increasing the Ag content caused a decrease of transition temperature. Using this modified quench-melt-growth technique, the reaction between crucibles and material can be completely avoided during the preparation of the precursor materials.

引用

页码：903 / 907

页数：5

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