Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorSilva, Juliana Batista da
dc.contributor.authorMohallem, N.D.S.
dc.identifier.issnISSN 0304-8853
dc.description.abstractComposites of nickel ferrite particles dispersed in porous silica matrix (NiFe2O4/SiO2)0 have been prepared by sol-gel process using tetraethylorthosilicate (TEOS) as a precursor of silica, and metallic nitrates as precursors of ferrite. Wet samples prepared in monolithic form have been dried at 110 Celsius degree for 24 h and thermally treated for 2 h at various temperatures. NiFe2O4 particles were formed in the matrix pores and the nucleation of these particles was observed with the increase in the drying temperature. The structural and magnetic changes of these xerogels have been studied and compared with the properties of nickel ferrites obtained by coprecipitation process. The composites presented magnetic susceptibility values two orders of magnitude higher than that of ferrite prepared by coprecipitation.
dc.subjectcomposite materials
dc.subjectsol-gel process
dc.titlePreparation of composites of nickel ferrites dispersed in silica matrix
dc.typeArtigo Periódico
dc.creator.affiliationCentro de Desenvolvimento da Tecnologia Nuclear/CDTN, Belo Horizonte, MG, Brasil
dc.creator.affiliationUniversidade Federal de Minas Gerais/UFMG, Belo Horizonte, MG, Brasil
dc.identifier.extentp. 1393-1396
dc.title.journalJournal of Magnetism and Magnetic Materials Amsterdam
Appears in Collections:Artigo de periódico

Files in This Item:
There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.