Effect of processing parameters on the characteristics of high-Tc superconductor YBa2Cu3Oy
Abstract
SEM, thermogravimetric analysis, powder X-ray diffraction,and measurements of electrical resistivity and magnetic susceptibility, are presently used to characterize the influence of sintering temperature, sintering and annealing atmospheres, and quench-rate on the properties of the YBa2Cu3Oy superconducting oxide. It is established that annealing in oxygen, together with slow cooling rates, are required for preparation of high-Tc superconductors with sharp transitions; rapid quenching from high temperature does not yield good superconductors, due to low oxygen content.
- Publication:
-
Journal of Materials Research
- Pub Date:
- December 1988
- DOI:
- 10.1557/JMR.1988.1304
- Bibcode:
- 1988JMatR...3.1304B
- Keywords:
-
- Crystal Structure;
- Electrical Resistance;
- High Temperature Superconductors;
- Mixed Oxides;
- Sintering;
- Transition Temperature;
- Barium Oxides;
- Copper Oxides;
- Temperature Effects;
- Yttrium Oxides;
- Solid-State Physics