Jafelicci, M. [UNESP]Godoi, R. H M [UNESP]2014-05-272014-05-272001-12-01Journal of Magnetism and Magnetic Materials, v. 226-230, n. PART II, p. 1421-1423, 2001.0304-8853http://hdl.handle.net/11449/66627The purpose of this work is to obtain spherical particles yttrium iron garnet (YIG) by coprecipitation technique. The spherical particles were obtained from either nitrate or chloride salt solutions by controlling the precipitation medium. Different agents of dispersion such as PVP and ammonium iron sulfate were used to optimize the shape and size of YIG. Samples were characterized by X-ray diffraction, scanning electron microscopy and vibrating sample magnetometry. The results show that the samples phase transition takes place at 850°C (orthorhombic phase) and at 1200°C (cubic phase). Spherical shape particles, with diameter of around 0.5 μm, present magnetization values close to the bulk value (26 emu g -1). © 2001 Elsevier Science B.V. All rights reserved.1421-1423engColloidal particlesCoprecipitationsSpherical yttrium iron garnetYIGBulk valueChloride saltsColloidal particleCoprecipitation techniqueCubic phaseIron sulfatesMagnetization valuesOrthorhombic phaseShape and sizeSpherical particleSpherical shapeVibrating sample magnetometryYttrium iron garnetsAmmonium compoundsChlorine compoundsCoprecipitationGarnetsPhase transitionsScanning electron microscopySilicate mineralsSpheresX ray diffractionYttriumYttrium compoundsYttrium alloysArtigo10.1016/S0304-8853(00)00996-3WOS:000170628400128Acesso restrito2-s2.0-33748699131