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Title | Novel precursors in preparation and characterization of nanosuperconductor YBa[2]Cu[3]O[7-y] |
Authors |
Alikhanzadeh, Arani S.
Salavati, Niasari M. |
ORCID | |
Keywords | |
Type | Conference Papers |
Date of Issue | 2011 |
URI | http://essuir.sumdu.edu.ua/handle/123456789/20664 |
Publisher | Видавництво СумДУ |
License | |
Citation | Alikhanzadeh, Arani S. Novel precursors in preparation and characterization of nanosuperconductor YBa[2]Cu[3]O[7-y] [Текст] / A.S. Alikhanzadeh, N.M. Salavati // Nanomaterials: applications & properties. Proceedings : 1-st International conference, Alushta, Crimea, 27-30 Semptember 2011 / Edited by: A. Pogrebnjak, T. Lyutyy, S. Protsenko. - Sumy : Sumy State University, 2011. - V.1, P.І. - C. 102-106. |
Abstract |
In order to prevent agglomeration of high temperature YBa2Cu3O7-x (YBCO) superconducting
materials, the solid state processing method based on new and appropriate
yttrium complex precursors that have high stability in air and compatibility in solution,
was used without applying any surfactant. A new method of preparing yttrium
precursors on the basis of coordination hydroxynaphthaldehydate, salicylaldehyde and
acetylacetonate compounds has been suggested. These have been prepared by a reaction
of yttrium acetate with three various coordination compounds for forming yttrium complex
types. These techniques provide proper control on nanoparticles size distribution.
The generated steric hindrance due to the structure of the novel precursors, acts like a
protecting agent and prevents from agglomeration. We synthesized nanoparticles of a
size about 30–50 nm with homogeneous grains distribution at high calcination temperature
920 °C. The maximum values of transition temperature into the superconducting
state have been found to be Tc(0) = 84 K with a temperature interval of ∆T = 3 K for
YBCO nanosuperconductor. The synthesized products were characterized by powder Xray
diffraction, fourier transform infrared spectroscopy (FT-IR), transmission electron
micrograph and scanning electronic microscopy.
When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/20664 |
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