Title of article
Grain size effect on the dielectric and magnetic properties of NiFe2O4 ceramics
Author/Authors
Li Lv، نويسنده , , Jianping Zhou، نويسنده , , Qian Liu، نويسنده , , Gangqiang Zhu، نويسنده , , Xian-Zhi Chen، نويسنده , , Xiao Bing Bian، نويسنده , , Peng Liu، نويسنده ,
Issue Information
ماهنامه با شماره پیاپی سال 2010
Pages
6
From page
1798
To page
1803
Abstract
Nanocrystalline NiFe2O4 powders with different crystal sizes were hydrothermally synthesized with different alkali concentrations at 230 °C. Then the NiFe2O4 nanopowders were sintered at various temperatures to obtain NiFe2O4 ceramics with different grain sizes. The NiFe2O4 ceramic properties were strongly dependent on the grain size. With the increase in the grain size, saturation magnetization (Ms) and magnetic permeability (μ) increased, Curie temperature (Tc) decreased. Dielectric constant enhanced and dielectric loss decreased in nanoferrites. The possible mechanism of grain size dependences was discussed in detail.
Journal title
Physica E Low-dimensional Systems and Nanostructures
Serial Year
2010
Journal title
Physica E Low-dimensional Systems and Nanostructures
Record number
1048810
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