Study of the parameters that influence the synthesis of Tbx Ca1-xMnO3 manganites by the chemical coprecipitation method



Título del documento: Study of the parameters that influence the synthesis of Tbx Ca1-xMnO3 manganites by the chemical coprecipitation method
Revista: Mexican journal of materials science and engineering
Base de datos: PERIÓDICA
Número de sistema: 000393553
ISSN: 0187-5779
Autores: 1
1
2
3
1
Instituciones: 1Universidad Autónoma del Estado de Hidalgo, Area Académica de Ciencias de la Tierra y Materiales, Mineral de la Reforma, Hidalgo. México
2Universidad Nacional Autónoma de México, Centro de Ciencias Aplicadas y Desarrollo Tecnológico, México, Distrito Federal. México
3Instituto Politécnico Nacional, Escuela Superior de Física y Matemáticas, México, Distrito Federal. México
Año:
Volumen: 2
Número: 1
Paginación: 18-23
País: México
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Aplicado, descriptivo
Resumen en inglés This paper presents the effect of different parameters that affect the preparation of calcium and terbium manganite (TbxCa1-xMnO3) through the chemical coprecipitation method. The parameters studied were: the temperature of the heat treatment, the working pH and the dopant´s concentration values. Samples powders were characterized with X-ray diffraction (XRD). Then electron paramagnetic resonance (EPR) was performed. The results of XRD patterns revealed that the single purity phase was obtained at pH 10 with a concentration range from 0.35 to 0.45 at 1000º C. Finally, by EPR we were able to determine the change of the electronic environment of manganese due to the presence of terbium
Disciplinas: Ingeniería
Palabras clave: Ingeniería de materiales,
Ingeniería química,
Síntesis química,
Manganita de calcio y terbio,
Perovskita,
Coprecipitación química,
Tratamiento térmico,
pH
Keyword: Engineering,
Chemical engineering,
Materials engineering,
Chemical synthesis,
Calcium and terbium manganite,
Perovskite,
Chemical coprecipitation,
Thermal treatment,
pH
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