Silver-Enhanced Synthesis of YBa2Cu3O7-x
- 1 April 1990
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 29 (4A) , L563
- https://doi.org/10.1143/jjap.29.l563
Abstract
Formation of the high-T c superconducting oxide YBa2Cu3O7-x via Y2BaCuO5+3BaCuO2+2CuO →2YBa2Cu3O7-x was 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 T c (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.Keywords
This publication has 5 references indexed in Scilit:
- Kinetics and reaction mechanisms for formation and decomposition of Ba2YCu3OxThermochimica Acta, 1989
- Grain-growth enhancement in the YBa2Cu3O7−δ superconductor by silver-oxide dopingMaterials Letters, 1989
- Composites of superconducting YBa2Cu3O7−y with silverMaterials Letters, 1988
- Fabrication of Superconducting Y-Ba-Cu Oxide Through an Improved Diffusion ProcessJapanese Journal of Applied Physics, 1988
- THE EFFECT OF Ag-DOPING ON THE CRITICAL CURRENT DENSITY OF YBa2Cu3O7−δ SUPERCONDUCTORSModern Physics Letters B, 1988