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- Barium strontium titanate powders prepared by spray pyrolysis
- University of Belgrade
- Universidade Estadual Paulista (UNESP)
- Universidade Federal de São Carlos (UFSCar)
- Ultasonic spray pyrolysis (SP) has been investigated for the production of the barium strontium titanate (BST) powders from the polymeric precursors. The processing parameters, such as flux of aerosol and temperature profile inside the furnace, were optimized to obtain single phase BST. The powders were characterized by the methods of X-ray diffraction analysis, SEM, EDS and TEM. The obtained powders were submicronic, consisting of spherical, polycrystalline particles, with internal nanocrystalline structure. Crystallite size of 10 nut, calculated using Rietveld refinement, is in a good agreement with results of HRTEM. (c) 2005 Elsevier B.V. All rights reserved.
- Materials Science and Engineering B-solid State Materials For Advanced Technology. Lausanne: Elsevier B.V. Sa, v. 122, n. 2, p. 140-144, 2005.
- Elsevier B.V.
- spray pyrolysis
- scanning electron microscopy (SEM)
- X-ray diffraction (XRD)
- transmission electron microscopy (TEM)
- Acesso restrito
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