Formation of thick YBa2Cu3O7- deltaand YBa2Cu3O7- delta-Ag films on Y2BaCuO5and BaZrO3substrates
| Autor: | D S McLachlan, N Sonnenberg, N Grammatika |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
Superconductivity
chemistry.chemical_classification Delta Materials science High-temperature superconductivity Morphology (linguistics) Scanning electron microscope Metals and Alloys Analytical chemistry Condensed Matter Physics law.invention chemistry law Electrical resistivity and conductivity Materials Chemistry Ceramics and Composites Electrical and Electronic Engineering Inorganic compound Chemical composition |
| Zdroj: | Superconductor Science and Technology. 6:469-475 |
| ISSN: | 1361-6668 0953-2048 |
| DOI: | 10.1088/0953-2048/6/7/004 |
| Popis: | Resistivity and superconducting transition curves, critical current and morphology studies, using a scanning electron microscope, are reported for a series of YBa2Cu3O7- delta and YBa2Cu3O7- delta +5, 10 and 20 wt.% Ag thick films. The above are studied for various maximum processing temperatures on supposedly inert substrates made from both Y2BaCuO5 and BaZrO3. The width of the best transition curves is about 10 K for the Y2BaCuO5 and 5 K for the BaZrO3 substrates. For BaZrO3 substrates the onset temperature is severely reduced. The addition of Ag is shown to improve the transition curves and the critical current densities. In all cases the critical current densities are much lower than the best values previously reported. |
| Databáze: | OpenAIRE |
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