✦ LIBER ✦

Sol–gel based Pechini method synthesis and characterization of Sm1 − xCaxFeO3 perovskite 0.1 ≤ x ≤ 0.5

✍ Scribed by A.M. Huízar-Félix; T. Hernández; S. de la Parra; J. Ibarra; B. Kharisov

Book ID: 116843911
Publisher: Elsevier Science
Year: 2012
Tongue: English
Weight: 651 KB
Volume: 229
Category: Article
ISSN: 0032-5910
DOI: 10.1016/j.powtec.2012.06.057

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✦ Synopsis

This study initiates the preparation of Sm 1 -x Ca x FeO 3 (0.1 ≤ x ≤ 0.5) compounds by sol-gel based Pechini method at low temperatures. The samples are analyzed by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), Thermogravimetric Analysis (TGA), and Differential Thermal Analysis (DTA) techniques for appropriate characterization of the distinct thermal events occurring during synthesis. The resulting XRD data reveal that a pure phase with perovskite structure is obtained for each composition. An exothermic peak appears in the DTA curve at 700 °C for x = 0.1 sample, suggesting a crystallization process; a similar behavior is found to occur for the other compositions as well. The microstructural characteristics of all the phases show particles of different morphology and size.

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✦ Synopsis

Sol–gel based Pechini method synthesis and characterization of Sm1 − xCaxFeO3 perovskite 0.1 ≤ x ≤ 0.5