Grain Size Control of the Magnetic Nanoparticles by Solid State Route Modification

  • A. C. H. Barreto
  • V. R. Santiago
  • R. M. Freire
  • S. E. Mazzetto
  • J. M. Sasaki
  • I. F. Vasconcelos
  • J. C. Denardin
  • Giuseppe Mele
  • Luigi Carbone
  • P. B. A. FechineEmail author


The CoFe2O4 and NiFe2O4 nanoparticles were synthesized exploiting a co-precipitation method and afterward calcinated at 400 °C through two different experimental apparatus: a conventional muffle and rotatory oven. X-ray diffraction (XRD) analysis revealed that nanocrystalline ferrites grew with a face center cubic structure (fcc) and Fd3m symmetry space group. XRD, transmission electron microscopy, and magnetic measurements confirmed the compositional homogeneity and the narrow size particle distribution (6-8 nm) of the sample thermally treated in a rotary oven, in all likelihood due to the sample’s constant turning movement. The size of the magnetic particles is extremely important and influences the choice of a potential technological application. For this reason, our study emerges as a new and simple innovating procedure to control the size of magnetic nanoparticles.


CoFe2O4 magnetic nanoparticles NiFe2O4 size grain control 



The support from CAPES, Funcap, and CNPq (Brazilian agencies); Fondecyt 1110252; Millennium Science Nucleus, Basic and Applied Magnetism Grant No. P10-061-F; and CONICYT BASAL CEDENNA FB0807 (Chilean agencies) is gratefully acknowledged.


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Copyright information

© ASM International 2013

Authors and Affiliations

  • A. C. H. Barreto
    • 1
    • 2
  • V. R. Santiago
    • 1
    • 2
  • R. M. Freire
    • 1
  • S. E. Mazzetto
    • 2
  • J. M. Sasaki
    • 3
  • I. F. Vasconcelos
    • 4
  • J. C. Denardin
    • 5
  • Giuseppe Mele
    • 6
  • Luigi Carbone
    • 7
  • P. B. A. Fechine
    • 1
    Email author
  1. 1.Grupo de Química de Materiais Avançados (GQMAT), Departamento de Química Analítica e Físico-QuímicaUniversidade Federal do Ceará – UFCFortalezaBrazil
  2. 2.Laboratório de Produtos e Tecnologia em Processos – LPT, Departamento de Química Orgânica e InorgânicaUniversidade Federal do CearáFortalezaBrazil
  3. 3.Laboratório de Raios X, Departamento de FísicaUniversidade Federal do CearáFortalezaBrazil
  4. 4.Departamento de Engenharia Metalúrgica e de MateriaisUniversidade Federal do CearáFortalezaBrazil
  5. 5.Departamento de FísicaUniversidad de Santiago de Chile, USACHSantiagoChile
  6. 6.Dipartimento di Ingegneria dell’InnovazioneUniversità del SalentoLecceItaly
  7. 7.Istituto Nanoscienze UOS Lecce – NNLLecceItaly

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