Abstract
The influence of Hg nominal concentration and of sample geometry during sintering on the phase purity, microstructure and superconducting properties of ceramic HgxBa2Ca2Cu3Oy was investigated. Samples could be prepared consisting of only one Hg-phase and very few nonsuperconducting secondary phases and with critical current densities in the grains up to 3.587106 A/cm2 (0 T, 4.2 K). Aging for 5 months in dry air leads to a strong degradation of the grain boundaries. The flux creep behaviour is mainly determined by bulk pinning effects.
| Original language | English |
|---|---|
| Pages (from-to) | 191-195 |
| Number of pages | 5 |
| Journal | Superlattices and Microstructures |
| Volume | 21 |
| Issue number | Suppl A |
| Publication status | Published - 1997 |
Fields of science
- 104005 Electrochemistry
- 104006 Solid state chemistry
- 104014 Surface chemistry
- 104017 Physical chemistry
- 105113 Crystallography
- 105116 Mineralogy
- 503013 Subject didactics of natural sciences
- 204 Chemical Process Engineering
- 204001 Inorganic chemical technology
- 205016 Materials testing
- 210006 Nanotechnology
- 211104 Metallurgy