TITLE

Thermal analysis applied in the crystallization study of SrSnO3

AUTHOR(S)
Alves, Mary C. F.; Souza, Soraia C.; Silva, Márcia R. S.; Paris, Elaine C.; Lima, S. J. G.; Gomes, R. M.; Longo, E.; de Souza, A. G.; dos Santos, Iêda M. Garcia
PUB. DATE
July 2009
SOURCE
Journal of Thermal Analysis & Calorimetry;Jul2009, Vol. 97 Issue 1, p179
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
SrSnO3 was synthesized by the polymeric precursor method with elimination of carbon in oxygen atmosphere at 250 °C for 24 h. The powder precursors were characterized by TG/DTA and high temperature X-ray diffraction (HTXRD). After calcination at 500, 600 and 700 °C for 2 h, samples were evaluated by X-ray diffraction (XRD), infrared spectroscopy (IR) and Rietveld refinement of the XRD patterns for samples calcined at 900, 1,000 and 1,100 °C. During thermal treatment of the powder precursor ester combustion was followed by carbonate decomposition and perovskite crystallization. No phase transition was observed as usually presented in literature for SrSnO3 that had only a rearrangement of SnO6 polyhedra.
ACCESSION #
44645707

 

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