OJMetal  Vol.2 No.2 , June 2012
Microstructure and Microwave Absorption Properties of Y-Substituted Ni-Zn Ferrites
Author(s) Na Chen*, Mingyuan Gu
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

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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