Producción Científica Profesorado

Y3Fe5O12 Prepared by Mechanosynthesis from Different Iron Sources.



Bolarín Miró, Ana María

2013

Claudia A. Cortés-Escobedo, Ana M. Bolarín-Miró, Félix Sánchez-De Jesús, Raúl Valenzuela, Elizabeth P. Juárez-Camacho, Iván L. Samperio-Gómez, Souad Ammar. Y3Fe5O12 Prepared by Mechanosynthesis from Different Iron Sources. Advances in Materials Physics and Chemistry, 3 (2013) 41-46. ISSN: 2162-531X.


Abstract


Yttrium iron garnet, Y3Fe5O12 (YIG) powders were synthesized by mechanochemical processing (MCP) from different iron sources (FeO, Fe2O3 and Fe3O4) mixed with Y2O3, followed by a heat treatment. The aim of this work is to demonstrate that MCP followed by annealing at very low temperatures (as compared with the classic solid state reaction) can induce the formation of nanostructured YIG. The effect of iron source on final structure was also studied. X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to characterize the synthesized powders. The precursors mixed in a stoichiometric ratio to obtain YIG were milled at room temperature in a shaker mixer mill with a ball:powder weight ratio of 10:1. A partial synthesis of YIG was achieved after 9 h of milling time by using the three sources of iron; however, a significant fraction of the product was the perovskite YFeO3. The largest yield of YIG was obtained by using FeO. In all cases a single garnet phase could only be completely obtained after an annealing process at 900?C, around 400?C lower than the typical temperatures to prepare the material by solid state reaction. An analysis of the microstrain and lattice parameters associated with peak displacements is discussed.



Producto de Investigación




Artículos relacionados

CARACTERIZACIÓN DE FERRITA DE MANGANESO OBTENIDA POR MECANOSÍNTESIS.

REDUCCIÓN QUÍMICA DE NiO-8YSZ PARA LA OBTENCIÓN DE CERMETS Ni-8YSZ ÚTILES COMO ÁNODOS EN CELDAS DE C...

EFECTO DE LA CONTAMINACIÓN POR Fe SOBRE La1-XCaXMnO3 (0

EFECTO DE LA MOLIENDA MECANICA Y LOS TRATAMIENTOS TÉRMICOS EN LA OBTENCIÒN DE COMPUESTOS DE NiO Y Mn...

Estabilidad térmica de manganitas tipo La1-xCaxMnO3 obtenidas mediante mecanosíntesis

MECANOSÍNTESIS DE MANGANITAS DE LANTANO: EFECTO DE LA RELACIÓN EN PESO BOLAS:POLVO

ESTUDIO COMPARATIVO DEL USO DE ÁCIDO CÍTRICO Y UREA EN LA SÍNTESIS DE MANGANITAS DE CALCIO DOPADAS C...

SÍNTESIS Y CARACTERIZACIÓN DE CÁTODOS DE CaxLa1-xMnO3 PARA SU APLICACIÓN EN CCOS

EFECTO DE LA MOLIENDA MECANICA Y LOS TRATAMIENTOS TÉRMICOS EN LA OBTENCIÒN DE COMPUESTOS DE NiO Y Mn...

OBTENCION DE Co-27Cr-6Mo MEDIANTE ALEADO MECANICO PARA POSIBLES APLICACIONES BIOMÉDICAS