SILVER-ENHANCED SYNTHESIS OF YBA2CU3O7-X

被引：17

作者：

WU, NL

CHANG, YC

机构：

[1] Department of Chemical Engineering, National Taiwan University, Taipei

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1990年 / 29卷 / 04期

关键词：

Silver; Synthesis; YBa[!sub]2[!/sub]Cu[!sub]3[!/sub]O[!sub]7-x[!/sub;

D O I：

10.1143/JJAP.29.L563

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Formation of the high-Tcsuperconducting oxide YBa2Cu3O7-xvia Y2BaCuO5+3BaCuO2+2CuO →2YBa2Cu3O7-xwas found to be greatly accelerated by silver (Ag). As an example, for calcination at 900°C for 1 h, the fractional conversion was almost tripled with an addition of 2% (by weight) Ag in the reactant powders. Furthermore, for the calcined powders showing similar extents of the reaction, both the Meissner effect and Tc(up to 95 K) increased with the Ag content. DTA studies established that the temperature at which the maximum reaction rate occurred was significantly lowered due to the presence of Ag. © 1990 IOP Publishing Ltd.

引用

页码：L563 / L565

页数：3

共 5 条

[1] KINETICS AND REACTION-MECHANISMS FOR FORMATION AND DECOMPOSITION OF BA2YCU3OX [J].