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

OJMetal > Vol.2 No.2, June 2012

Open Journal of Metal

Volume 2, Issue 2 (June 2012)

ISSN Print: 2164-2761 ISSN Online: 2164-277X

Citations

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

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Download as PDF (Size: 312KB) PP. 37-41

DOI: 10.4236/ojmetal.2012.22006 6,761 Downloads 12,823 Views Citations

Author(s)

Na Chen, Mingyuan Gu

Affiliation(s)

Department of Pharmaceutical Science & Technology, College of Chemistry and Biology,.
State Key Laboratory of MMCs, Shanghai Jiaotong University, Shanghai, China.

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

KEYWORDS

Nick-Zinc Ferrite; Sol-Gel Preparation; Magnetic Properties; Microwave Absorption

Share and Cite:

Chen, N. and Gu, M. (2012) Microstructure and Microwave Absorption Properties of Y-Substituted Ni-Zn Ferrites. Open Journal of Metal, 2, 37-41. doi: 10.4236/ojmetal.2012.22006.

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