Bagchi, Biswajoy and Basu, Rajendra Nath (2015) A simple sol-gel approach to synthesize nanocrystalline 8 mol% yttria stabilized zirconia from metal-chelate precursors: Microstructural evolution and conductivity studies. Journal of Alloys and Compounds, 647. pp. 620-626. ISSN 0925-8388

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A facile non alkoxide based sol-gel technique has been used to synthesize homogeneously distributed nanocrystalline 8 mol% yttria stabilized zirconia (YSZ) powder. The two steps of such powder preparation are gelation and thermal decomposition of metal-chelate complex in aqueous solution. Such nano powder was characterized by X-ray diffraction (XRD), Transmission electron microscopy (TEM), Field emission scanning electron microscope (FESEM), Fourier transform infra-red spectroscopy (FTIR) and BET surface area analyser. Upon calcinations at 600 degrees C, well crystallized nano-sized (10-15 nm) YSZ powder is obtained having spherical morphology and reasonably high surface area. The required ionic conductivity (0.107 S/cm) is achieved with 1200 degrees C sintered samples when measured at 1000 degrees C in air. (C) 2015 Elsevier B.V. All rights reserved.

Item Type: Article
Subjects: Electronics
Engineering Materials
Depositing User: Bidhan Chaudhuri
Date Deposited: 09 Dec 2015 11:33
Last Modified: 09 Dec 2015 11:33

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