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Synthesis and characterization of nanocrystalline barium strontium titanate powder by a modified sol-gel processing

Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
In this research work, nanocrystalline BST (Ba0.6Sr0.4 TiO3) powders were synthesized through a modified sol-gel process, using barium acetate, strontium acetate and titanium isopropoxide as the precursors. In this process, stoichiometric proportions of barium acetate and strontium acetate were dissolved in acetic acid and titanium (IV) isopropoxide was added to form BST gel. The as-formed gel was dried at 200 °C and then calcined in the temperature range of 600 to 850 °C for crystallization. The samples were characterized by infrared spectroscopy method (FT-IR), X-ray diffraction technique (XRD) and field emission scanning electron microscope (FESEM) and energy dispersive X-ray spectroscopy. EDS analysis of these samples confirmed the formation of the final phase with the special stoichiometry. The formation of a cubic perovskite crystalline phase with nanoscale dimension was detected using the mentioned techniques. The results showed that the obtained crystallite sizes were 33 and 37 nm for BST powder calcined at 750 and 850 °C, respectively.
Wydawca
Rocznik
Strony
63--68
Opis fizyczny
Bibliogr. 25 poz., rys., tab.
Twórcy
  • Department of Physics, Kharazmi University, Tehran, Iran
autor
  • Department of Physics, Kharazmi University, Tehran, Iran
autor
  • Department of Physics, Islamic Azad University North Tehran Branch, Tehran, Iran
Bibliografia
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  • 3 Maitra S., Banerjee M., Mukherjee S., Singh P.K.,J. Aust. Ceram. Soc., 49 (2013), 79.
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  • 5 Ahmed M.A, Kamal M., El Desouky F.G., Girgis E., Farag I.S.A., Batttisha I.K.,J. Appl. Sci. Res., 9 (2013), 2432.
  • 6 Enhessari M., Parviz A., Ozaee K., Habibi Abyaneh H.,Int. J. Nano Dimens., 2 (2011), 85.
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  • 8 Simoesa A.Z., Mouraa F., Onofrea T.B., Ramirezc M.A., Varelac J.A., Longoc E.,J. Alloy. Compd., 508 (2010), 620.
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  • 16 Du J., Choy K.L.,Mat. Sci. Eng. C, 26 (2006), 1117.
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  • 18 Brinker C., Hurd A.J.,J. Non-Cryst. Solids., 147 (1992), 424.
  • 19 Golmohammad M., Nemati Z.A, Faghihi Sani M.A.,Mater. Sci.-Poland, 28 (2010), 421.
  • 20 Bellamy L.J.,The Infra-red Spectra of Complex Molecules, Methuen., London, 1958.
  • 21 Duran P., Capel F., Gutierrez D., Tartaj J., Banares M.A., Moure C.,J. Mater. Chem., 11 (2001), 1828.
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Uwagi
Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-e59bfd73-2773-4b04-9a80-eedacf92783f
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