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HomeKey Engineering MaterialsKey Engineering Materials Vol. 727High Frequency Electrical Properties of Fe/SiO2...

High Frequency Electrical Properties of Fe/SiO₂ Composites by Pressureless Sinter

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Abstract:

In this paper, Fe/SiO₂ composites with different Fe content were prepared through pressureless sinter in weakly reductive atmosphere after high energy ball milling. The electrical properties including ac conductivity, permittivity were investigated in detail. The results showed that the frequency dispersions of ac conductivity follow the power law, indicating the hoping conduction behavior. The real part of permittivity for composites increased with higher Fe content, which was attributed to the more interface between Fe and SiO₂. Besides, Debye-like dielectric relaxations were observed, and the Debye-like loss peak appeared blue shift as increasing the Fe content.

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Functional Materials Research II

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Periodical:

Key Engineering Materials (Volume 727)

Pages:

257-261

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.727.257

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Online since:

January 2017

Authors:

Pei Tao Xie, Zhong Yang Wang, Run Hua Fan, Lei Qian, Guo Hua Fan

Keywords:

Cermet, Electrical Property, Pressureless Sinter

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© 2017 Trans Tech Publications Ltd. All Rights Reserved

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