Composite Bi-2212/Ag superconductors grown by laser travelling floating zone at low rates
Well-textured Bi2.02Sr2.02Ca0.98Cu1.99O x /2.9 wt % Ag composite samples have been grown by the laser floating zone at very low rates (1, 3, and 5 mm/h). The as-grown samples present superconducting behavior, as a result of being composed by long and well-textured Bi-2212 grains as major phase. Afte...
| Autores: | , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión enviada para evaluación y publicación |
| Fecha de publicación: | 2014 |
| País: | España |
| Institución: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repositorio: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:10459.1/47569 |
| Acceso en línea: | https://doi.org/10.1007/s10948-014-2758-y http://hdl.handle.net/10459.1/47569 |
| Access Level: | acceso abierto |
| Palabra clave: | Bi-2212 Directional growth Superconductors |
| Sumario: | Well-textured Bi2.02Sr2.02Ca0.98Cu1.99O x /2.9 wt % Ag composite samples have been grown by the laser floating zone at very low rates (1, 3, and 5 mm/h). The as-grown samples present superconducting behavior, as a result of being composed by long and well-textured Bi-2212 grains as major phase. After annealing, the samples do not dramatically increase their J C. This effect has been associated with the presence of long cracks along the ab planes of the superconducting grains. Even after annealing, the cracks have not been totally removed and, as a consequence, the critical current of the samples after the thermal treatment has only been improved in around 50 %, compared with the as-grown samples. |
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