Characterization and magnetic properties of nanocrystalline nickel ferrite synthesized by carbon-adsorb auto combustion method

被引：1
|
作者：
Chen, Yingshan [1 ,2 ]
Feng, Wangjun [1 ,2 ]
Li, Cuihuan [2 ]
Li, Ruishan [1 ,2 ]
Fan, Rui [2 ]
Yang, Hua [1 ,2 ]
机构：
[1] Lanzhou Univ Technol, State Key Lab Gansu Adv Nonferrous Met Mat, Lanzhou, Peoples R China
[2] Lanzhou Univ Technol, Sch Sci, Lanzhou, Peoples R China
来源：
ADVANCED MATERIALS, PTS 1-4 | 2011年 / 239-242卷
基金：
中国国家自然科学基金;
关键词：
carbon-adsorb auto combustion; NiFe2O4; the saturation magnetization; coercivity; the residual magnetization; HYDROTHERMAL SYNTHESIS; PARTICLES;
D O I：
10.4028/www.scientific.net/AMR.239-242.108
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
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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页码：108 / +
页数：2
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