Dielectric characteristics of Cu modified Z-type planar hexaferrite

Author

Zhang, Hongguo ; Li, Longtu ; Zhou, Ji ; Yue, Zhenxing ; Gui, Zhilun

Author_Institution

Dept. of Mater. Sci. & Eng., Tsinghua Univ., Beijing, China

Volume

2

fYear

2000

fDate

2000

Firstpage

859

Abstract

The effect of Cu modification on dielectric properties of Z-type planar hexagonal ferrites sintered at relatively low temperatures with compositions of Ba₃Co_2(1-x-y)Cu_2xZn_2yFe _24-δO₄₁ was-investigated. Experimental results show that dielectric constant and loss tgδ obviously degrade, dielectric relaxation peak shifts to high frequency region and resonance peaks appear in hyper frequencies. Progressive studies affirm that the improvement of dielectric and resistivity properties mainly results from the decrease of the number of Fe²⁺ ions

Keywords

barium compounds; cobalt compounds; copper compounds; dielectric losses; dielectric relaxation; ferrites; inductors; permittivity; surface mount technology; zinc compounds; Ba₃Co_2(1-x-y)Cu_2xZn_2yFe_24-δO₄₁; SMT; Z-type planar hexagonal ferrites; dielectric characteristics; dielectric constant; dielectric relaxation peak; loss tgδ; multi-layer chip inductors; resistivity properties; resonance peaks; Conductivity; Degradation; Dielectric constant; Dielectric losses; Ferrites; Iron; Resonance; Resonant frequency; Temperature; Zinc;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics, 2000. ISAF 2000. Proceedings of the 2000 12th IEEE International Symposium on

Conference_Location

Honolulu, HI

ISSN

1099-4734

Print_ISBN

0-7803-5940-2

Type

conf

DOI

10.1109/ISAF.2000.942453

Filename

942453