Heat-treatment effects on the magnetic response of superconducting mesoscopic samples
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Elsevier B.V.
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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.
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superconducting material, heat treatment, YBCO, chemical route
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Inglês
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Journal of Magnetism and Magnetic Materials. Amsterdam: Elsevier B.V., v. 320, n. 14, p. E496-E499, 2008.
