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RESEARCH PRODUCT

The Synthesis, Characterization and Sintering of Nickel and Cobalt Ferrite Nanopowders

Ilmārs ZālīteMāris KodolsJānis GrabisGundega HeidemaneMikhail Maiorov

subject

lcsh:TN1-997Materials scienceNanocompositeCoFe2O4MetallurgyNanoparticleSinteringchemistry.chemical_elementNickelchemistrypropertiesSpecific surface areananocompositesFerrite (magnet)nanoparticlesGeneral Materials ScienceNiFe2O4CrystalliteParticle sizelcsh:Mining engineering. MetallurgyNuclear chemistry

description

The NiFe2O4 and CoFe2O4 ferrites were synthesized by two methods – chemical sol-gel self-combustion method and the high frequency plasma chemical synthesis and magnetic properties, crystallite size, specific surface area of synthesized products are characterized. Nanopowders synthesized in the high frequency plasma are with specific surface area in the range of (28 – 30) m2/g (the average particle size (38 – 40) nm, crystallite size ~40 nm). The ferrite nanopowders obtained by sol-gel self-combustion method have the specific surface area of (37 – 43) m2/g (average particle size (26 – 31) nm, crystallite size (10 – 20) nm). All synthesized nanopowders were sintered via pressure-less sintering method and magnetic properties of compacted materials were studied, as well.DOI: http://dx.doi.org/10.5755/j01.ms.18.1.1332

https://doi.org/10.5755/j01.ms.18.1.1332