Synthesis and Property Evaluation of Y-Ba(2)-Cu(3)-O(6+x) Superconductors
Abstract
Superconducting YBa2Cu3O6+x powders were synthesized for obtaining fine particles of uniform size using solid state chemical reaction, coprecipitation and copper oxide coating with yttrium and barium oxalate or carbonate methods. The powders obtained from all three different routes showed superconductivity; however, the Tc values for the as synthesized powders via. the solid state and copper oxide coating methods were 90 K and the oxalate and carbonate derived powders was 80 and 60 K respectively. Recalcination and annealing the samples in oxygen had very little effect on the Tc value, but the sample resistance above Tc appears to decrease slightly. Keywords: Superconductors, Ceramics yttrium barium copper oxide.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1990
- Accession Number
- ADA223494
Entities
People
- A. S. Rao
- O. P. Arora