Microwave anneal effect on magnetic properties of Ni0.6Zn0.4Fe2O4 nano-particles prepared by conventional hydrothermal method |
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Authors: | Zhongzhu Wang Yanyu XiePeihong Wang Yongqing MaShaowei Jin Xiansong Liu |
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Affiliation: | a Anhui Provincial Key Laboratory of Information Materials and Devices, Anhui University, Hefei 230039, China b School of Physics and Material Science, Anhui University, Hefei 230039, China |
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Abstract: | Ni0.6Zn0.4Fe2O4 ferrite nano-particles with a crystallite size of about 20 nm were prepared by the conventional hydrothermal method, followed by annealing in a microwave oven for 7.5-15 min. The microstructure and magnetic properties of the samples were characterized by scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy and vibrating sample magnetometry. The microwave annealing process has slight effect on the morphology and size of Ni0.6Zn0.4Fe2O4 ferrite nano-particles. However it reduces the lattice parameter and enhances the densification of the particles, and then greatly increases the saturation magnetization (50-56 emu/g) and coercive force of the samples as compared to the non-annealing condition. The microwave annealing process is an effective way to rapidly synthesize high performance ferrite nano-particle. |
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Keywords: | Ni-Zn ferrite nano-particle Microwave annealing Hydrothermal synthesis Microstructure Magnetic property |
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