Electromagnetic Properties of a New Ferrite-Ceramic Composite Material

Author

He, Ying ; Zhang, Huaiwu ; Ling, Weiwei ; Mu, Chunhong ; Li, Yuanxun ; Shen, Jian

Author_Institution

Key Lab. of Electron. Thin Film & Integrated Devices, Univ. of Electron. Sci. & Technol. of China, Chengdu, China

Volume

45

Issue

10

fYear

2009

Firstpage

4314

Lastpage

4316

Abstract

NiCuZn ferrite-CaCu₃Ti₄O₁₂ composite materials which possess both capacitive and inductive properties for suppressing electromagnetic interference (EMI) were synthesized by a solid-state reaction. As the CaCu₃Ti₄O₁₂ content increases from 1 to 30 wt%, the epsiv´ of the composites measured at 100 Hz increases from 35 to 12 000 while the mu´ of the composites measured at 100 kHz decreases from 1800 to 27. The microstructures of the sintered ceramics were observed and analyzed by scanning electron microscopy. The influences of different composition on the electromagnetic properties of the composites were investigated.

Keywords

calcium compounds; ceramics; composite materials; copper compounds; ferrites; magnetic permeability; nickel compounds; permittivity; scanning electron microscopy; zinc compounds; NiCuZnFe₂O₄-CaCu₃Ti₄O₁₂; electromagnetic properties; ferrite-ceramic composite material; frequency 100 kHz; permeability; permittivity; scanning electron microscopy; solid-state reaction; Ceramics; permeability; permittivity;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2009.2024953

Filename

5257247