Characterization and Magnetic Properties of Nanocrystalline Nickel Ferrite Synthesized by Carbon-Adsorb Auto Combustion Method

Ying Shan Chen; Wang Jun Feng; Cui Huan Li; Rui Shan Li; Rui Fan; Hua Yang

doi:10.4028/www.scientific.net/AMR.239-242.108

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 239-242Characterization and Magnetic Properties of...

Characterization and Magnetic Properties of Nanocrystalline Nickel Ferrite Synthesized by Carbon-Adsorb Auto Combustion Method

Abstract:

Nanocrystalline nickel ferrite has been successfully synthesized through carbon-adsorb auto combustion method from Ni and Fe nitrate salts. The powders were characterized by X-raydiffraction(XRD) techniques,scanning electron microscopy(SEM),transmission electron microscopy(TEM) and vibrating sample magnetometry(VSM). XRD indicated that the products were spinel NiFe₂O₄. SEM and TEM indicated that the particles were spherical with particle size in the range 10-80nm. VSM showed that the sample exhibited typical ferromagnetic behavior at room temperature,while the coercivity of the sample was 150.45Oe and the residual magnetization of the sample was 5.1emu/g.The saturation magnetization of the sample(25.3emu/g)was lower than that for the reported bulk particles(55emu/g), and it has the ultrafine nature.

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Advanced Materials Research (Volumes 239-242)

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108-111

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.239-242.108

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Online since:

May 2011

Authors:

Ying Shan Chen, Wang Jun Feng, Cui Huan Li, Rui Shan Li, Rui Fan, Hua Yang

Keywords:

Carbon-Adsorb Auto Combustion, Coercivity, NiFe₂O₄, Residual Magnetization, Saturation Magnetisation

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