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Ceramica  2011 

Síntese e caracteriza??o de espinélios à base de ferritas com gelatina como agente direcionador

DOI: 10.1590/S0366-69132011000300015

Keywords: spinel, ferrites, pechini method.

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Abstract:

the ferrites with spinel type structure comprise a group of magnetic materials very well established. however, improvements and innovations are still happening seeking new applications and optimization of preparation techniques. among the materials with spinel structure, the ferrite stand out because they have a broad technological importance in the area of materials, with applications in humidity and oxygen sensors, microwave materials, pigments, magnetic materials and electrical, catalytic hydrogenation, thin films ceramic tiles, among others. in this work spinel-type cufe2o4 and cufecr2o4 were synthesized using gelatin as directing agent with the purpose of producing nanosized homogeneous particles through a simple, fast and affordable method. the ferrites were characterized by thermal analysis, x-ray diffraction, infrared spectroscopy and scanning electron microscopy. the results confirmed the feasibility of the used synthesis route.

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