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2014 | 126 | 1 | 142-143
Article title

Structure and Magnetic Properties of Nanocrystalline NiFe_{2}O_{4} Prepared via Precipitation Route

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EN
Abstracts
EN
Nanocrystalline Ni-ferrite was synthesized by modified precipitation method in which soluble starch is used as dispersing agent and Na_{2}CO_{3} as a precipitating agent. NiSO_{4}·6H_{2}O and Fe(NO_{3})_{3}·9H_{2}O were used as precursors for nickel and ferric oxide, respectively. The obtained nanocrystalline Ni-ferrite was analysed and discussed through structural, compositional and magnetic characterization. Formation of pure NiFe_{2}O_{4} phase with average crystallite size of 21 nm has been confirmed by X-ray diffraction analysis (XRD). The determined phase composition was additionally supported by results of ^{57}Fe Mössbauer phase (MS) analysis and material's nanocrystalline structure by field emission scanning electron microscopy (FE-SEM). Thermomagnetic behaviour was studied up to 800 °C. The obtained room temperature magnetic hysteresis loop, recorded by means of a vibrating sample magnetometer (VSM), exhibits characteristic "S" shape of the soft magnetic material with the measured coercivity of about 10 kA/m and the specific moment up to 40 Am^{2}/kg.
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Contributors
author
  • CEITEC IPM, Institute of Physics of Materials AS CR, v.v.i., Žižkova 22, CZ-616 62 Brno, Czech Republic
author
  • CEITEC IPM, Institute of Physics of Materials AS CR, v.v.i., Žižkova 22, CZ-616 62 Brno, Czech Republic
author
  • Institute for Technology of Nuclear and Other Mineral Raw Materials, Franse d'Eperea 86, 11000 Belgrade, Serbia
author
  • Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia
author
  • Technical Faculty in Bor, University of Belgrade, Vojske Jugoslavije 12, 19210 Bor, Serbia
author
  • Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia
References
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Document Type
Publication order reference
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bwmeta1.element.bwnjournal-article-appv126n1067kz
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