Changes in the composition and properties of YBa2Cu3O(6.5+delta) high temperature superconducting ceramics following the transmission of a direct current
Abstract
The effect of direct current transmission on the superconducting transition behavior of YBa2Cu3O(6.5+delta) ceramics was investigated experimentally in the range from 77 K to room temperature. The observed changes in active oxygen distribution, impurity concentration, volume of high temperature superconducting grains, and intragranular critical current density are examined. It is noted that further studies are required to determine the mechanisms of the observed phenomena.
- Publication:
-
Fizika Nizkikh Temperatur
- Pub Date:
- December 1991
- Bibcode:
- 1991FizNT..17.1561N
- Keywords:
-
- Chemical Composition;
- Direct Current;
- High Temperature Superconductors;
- Mixed Oxides;
- Yttrium Oxides;
- Barium Oxides;
- Copper Oxides;
- Current Density;
- Solid-State Physics