Publicação: SrZrO3 powders obtained by chemical method: Synthesis, characterization and optical absorption behaviour
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Elsevier B.V.
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Strontium zirconate (SrZrO3) powders have been synthesized by the polymeric precursor method after heat treatment at different temperatures for 2 h in oxygen atmosphere. The decomposition of precursor powder was followed by thermogravimetric analysis, X-ray diffraction (XRD) and Fourier transform Raman (FT-Raman). The UV-vis absorption spectroscopy measurements suggested the presence of intermediary energy levels in the band gap of structurally disordered powders. XRD, Rietveld refinement and FT-Raman revealed that the powders are free of secondary phases and crystallizes in the orthorhombic structure. (C) 2007 Elsevier Masson SAS. All rights reserved.
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SrZrO3, polymeric precursor method, Rietveld refinement, crystal structure, optical behaviour
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Inglês
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Solid State Sciences. Amsterdam: Elsevier B.V., v. 9, n. 11, p. 1020-1027, 2007.
