Estudios Mossbauer del sistema vítreo Fe: Lh0-Ti02-Te02
DOI:
https://doi.org/10.15381/rif.v5i01-02.8751Keywords:
espectroscopía Mossbauer, sistemas vítreos, Fe, U20-TiOz-Te02Abstract
La espectroscopia Mlissbauer del 57Fe ha sido utilizada para investigar el proceso de transformaciones de las unidades de Te(Fe)-0 por la acción del óxido modificador LhO. Nuestros experimentos en el sistema vítreo Fe: LhO-Ti02-TeOz mostraron que para concentraciones menores que 0.19 Mol de U20 las bi-pirámides se transforman en pirámides debido a la acción del óxido modificador U20, mientras que para concentraciones mayores que 0.19 Mol el ión de Fe3 a diferencia del Te4+, tiende a atraer oxígenos extras llevando así a un aumento de las unidades bi-piramidales. @ 2002 CSI. Todos los derechos reservadosDownloads
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Copyright (c) 2002 Dalber R. Sanchez, Elisa Baggio S., Raúl F. Cuevas, V. C. Solano R., Luiz C. Barbosa
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