Abstract
The synthesis by combustion reaction is distinguished as one alternate technique for powders preparation with high pureness degree , nanometric size of particles, and low cost. Thus, this work had as objective the synthesis and characterization of Ni0,5-xCuxZn0,5FeO4 ferrites powders with x=0,0; 0,1; 0,2; 0,3; 0,4 and 0,5 mol prepared by combustion reaction. The influence of the simultaneous substitution of Ni for Cu in the synthesis and the final characteristics of the powders also was investigated. The powders were characterized by BET, DRX, MEV, and sedimentation. The results showed that the combustion reaction synthesis is an adequate process to get crystalline powders of Ni-Cu-Zn ferrite with cristaline sizes between 30,0 - 47,5 nm. The increase of Cu addition lead to a slight increase of the cristalite size due to an increase in the time and temperature of combustion flame.
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