Impedance spectroscopy analysis of BaFe12O19 M-type hexaferrite obtained by ceramic method

被引：71

作者：

Almeida, Rafael Mendonca ^{[1
]}

Paraguassu, Waldeci ^{[1
]}

Pires, Danubia Soares ^{[2
]}

Correa, Ronaldo Ribeiro ^{[2
]}

de Araujo Paschoal, Carlos William ^{[1
]}

机构：

[1] Univ Fed Maranhao, Dept Fis, BR-65085580 Sao Luis, MA, Brazil

[2] Ctr Fed Educ Tecnol Maranhao, Dept Engn Eletr, BR-65030000 Sao Luis, MA, Brazil

来源：

CERAMICS INTERNATIONAL | 2009年 / 35卷 / 06期

关键词：

Milling; Dielectric properties; Impedance; DIELECTRIC-PROPERTIES; MAGNETIC-PROPERTIES; FERRITE; COPRECIPITATION; BEHAVIOR; FILMS;

D O I：

10.1016/j.ceramint.2009.02.020

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The impedance spectroscopy analysis for M-type BaFe12O19 (BaM) ceramics prepared by ceramic route is reported. The main aim is to investigate the electric properties in function of the synthesis parameters (milling time and milling power). It was shown that milling parameters strongly influence the electrical properties such as dielectric constant, whose magnitude increases with the milling power. Moreover the relaxation frequency is fully dependent on the milling parameters and it shifts to high frequencies when milling power decreases. Finally, impedance and dielectric loss tangent also change with milling parameters. (C) 2009 Elsevi.er Ltd and Techna Group Sx.l. All fights reserved.

引用

页码：2443 / 2447

页数：5

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