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Microstructure and Microwave Absorption Properties of Y-Substituted Ni-Zn Ferrites

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DOI: 10.4236/ojmetal.2012.22006    5,509 Downloads   10,638 Views   Citations
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ABSTRACT

The Yttrium ions substituted Ni-Zn ferrites powders were prepared using a sol-gel technique. The crystal structure, magnetic properties and microwave absorption properties of the Ni-Zn ferrites powders were studied by X-ray diffraction, vibrating sample magnetometer and vector network analyzer. The results show that the microwave absorption properties of the Ni-Zn ferrites can be improved effectively with the substitution of Y ions. The minimum reflection loss of the Yttrium ions substituted Ni-Zn powder reaches –34.8 dB, with the –20 dB bandwidth over 2 GHz. The Yttrium substitution can improve microwave absorption properties of Ni-Zn ferrite due to smaller grain dimension and the higher specific magnetization

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

N. Chen and M. Gu, "Microstructure and Microwave Absorption Properties of Y-Substituted Ni-Zn Ferrites," Open Journal of Metal, Vol. 2 No. 2, 2012, pp. 37-41. doi: 10.4236/ojmetal.2012.22006.

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