Artículos de revistas
Heat-treatment effects on the magnetic response of superconducting mesoscopic samples
Fecha
2008-07-01Registro en:
Journal of Magnetism and Magnetic Materials. Amsterdam: Elsevier B.V., v. 320, n. 14, p. E496-E499, 2008.
0304-8853
10.1016/j.jmmm.2008.02.094
WOS:000255512600147
1353862414532005
0000-0002-7734-4069
Autor
Universidade Estadual Paulista (Unesp)
Universidade Federal de São Carlos (UFSCar)
Institución
Resumen
The use of chemical methods in the synthesis of high-quality and small-size polycrystalline samples has been increased in recent years. In this work, a chemical route based on an aqueous precursor solution of metals followed by the addition of a water-soluble polymer formed by ethylenediaminetetraacetic acid (EDTA) and ethylene glycol (EG) was tested to produce superconducting mesoscopic YBa(2)Cu(3)O(7-gamma) samples. Different conditions of heat treatments and the effects of argon and oxygen atmospheres during the calcination steps were traced using X-ray diffraction (XRD), scanning electron microscopy (SEM) and magnetic measurements. (C) 2008 Elsevier B. V. All rights reserved.