caa a22 4500 463226844 CHVBK 20180405153229.0 cr unu---uuuuu 170326e20070201xx s 000 0 eng 10.1007/s10853-006-1440-6 doi (NATIONALLICENCE)springer-10.1007/s10853-006-1440-6 Microstructure and magnetic properties of Ni1− x Zn x Fe2O4 synthesized by combustion reaction [Elektronische Daten] [Ana Costa, Márcio Morelli, Ruth Kiminami] An investigation was made of samples having a chemical formula of Ni1−x Zn x Fe2O4, where x=0.3, 0.5 and 0.7. The samples were prepared by the reaction combustion synthesis method and sintered at 1,200°C/2h in a static air atmosphere. The influence of the Zn concentration on the relative density, microstructure and magnetic properties of the samples was studied. X-ray diffraction, scanning electron microscopy and magnetic hysteresis loop tracer were used to analyze the compositions. The samples were found to have a spinel cubic structure, sintered density of 92.9%-98.8% of the corresponding X-ray density, homogeneous microstructure with grain size ranging from 1.37 to 3.36μm, maximum flux density of 0.16-0.35T, field coercivity ranging from 17 to 168A/m, and loss hysteresis of 1.5-105W/kg. Increased grain growth, with fine pores inside the grains, was found to occur as the Zn concentration increased. The overall findings are discussed here in light of the existing understanding of these systems. Springer Science+Business Media, LLC, 2007 Costa Ana Department of Materials Engineering, Federal University of Paraíba, 58970-000, Campina Grande, PB, Brazil aut Morelli Márcio Department of Materials Engineering, Federal University of São Carlos, 13565-905, São Carlos, SP, Brazil aut Kiminami Ruth Department of Materials Engineering, Federal University of São Carlos, 13565-905, São Carlos, SP, Brazil aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/3(2007-02-01), 779-783 0022-2461 42:3<779 2007 42 10853 https://doi.org/10.1007/s10853-006-1440-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1440-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Costa Ana Department of Materials Engineering, Federal University of Paraíba, 58970-000, Campina Grande, PB, Brazil aut NATIONALLICENCE 700 1- Morelli Márcio Department of Materials Engineering, Federal University of São Carlos, 13565-905, São Carlos, SP, Brazil aut NATIONALLICENCE 700 1- Kiminami Ruth Department of Materials Engineering, Federal University of São Carlos, 13565-905, São Carlos, SP, Brazil aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/3(2007-02-01), 779-783 0022-2461 42:3<779 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer