Composite Bi-2212/Ag superconductors grown by laser travelling floating zone at low rates
MetadataShow full item record
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.
Is part ofJournal of Superconductivity and Novel Magnetism, 2014, vol. 27, núm. 9
European research projects
Showing items related by title, author, creator and subject.
Constantinescu, G.; Rasekh, SH.; Torres, M.A.; Chocarro, Cristina; Díez, J.C.; Madre, M.A.; Sotelo, A. (Consejo Superior de Investigaciones Científicas (Espanya), 2014)Ca3-xMgxCo4O9 polycrystalline thermoelectric ceramics with small amounts of Mg have been synthesized by the classical solid state method. Microstructural characterizations have shown that all the Mg has been incorporated ...
Bevilacqua, Piero; Coma Arpón, Julià; Pérez Luque, Gabriel; Chocarro, Cristina; Juárez Escario, Alejandro; Solé Cutrona, Cristian; De Simone, Marilena; Cabeza, Luisa F. (Elsevier, 2015)In the last few years an increasing attention has been paid to efficient energy construction systems in the building sector. Although in this contest extensive green roofs are reported to be very effective and sustainable ...
Tree—Open Grassland Structure and Composition Drive Greenhouse Gas Exchange in Holm Oak Meadows of the Iberian Peninsula Ibañez, Mercedes; Leiva, María José; Chocarro, Cristina; Aljazairi López, Salvador; Ribas Artola, Àngela; Sebastià, Ma. T. (MDPI, 2020-12-28)Iberian holm oak meadows are savannah-like ecosystems that result from traditional silvo-pastoral practices. However, such traditional uses are declining, driving changes in the typical tree—open grassland structure of ...