Glass additive influence on the sintering behavior, microstructure and microwave magnetic properties of Cu-Bi-Zn co-doped Co2Z ferrites

被引:9
作者
Hsiang, Hsing-I [1 ]
Mei, Li-Then [1 ]
Hsi, Chi-Shiung [2 ]
Wu, Wei-Cheng [3 ]
Cheng, Li-Bao [1 ]
Yen, Fu-Su [1 ]
机构
[1] Natl Cheng Kung Univ, Dept Resources Engn, Particulate Mat Res Ctr, Tainan 70101, Taiwan
[2] Natl United Univ, Dept Mat Sci & Engn, Miaoli, Taiwan
[3] Inpaq Technol Co Ltd, Miaoli, Taiwan
关键词
Co(2)Z ferrites; Sintering; Magnetic property; Glass; HIGH-FREQUENCY APPLICATIONS; HEXAGONAL FERRITES; THERMAL-STABILITY; 3BA(0.5)SR(0.5)O-CENTER-DOT-2COO-CENTER-DOT-12FE(2)O(3);
D O I
10.1016/j.jmmm.2010.12.006
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The Bi2O3-B2O3-ZnO-SiO2 (BB35SZ) glass effects on the sintering behavior and microwave magnetic properties of Cu-Bi-Zn co-doped Co(2)Z ferrites were investigated to develop low-temperature-fired ferrites. The glass wetting characteristics on the Co(2)Z ferrite surface, X-ray diffractometer, scanning electron microscopy and a dilatometer were used to examine the BB35SZ glass effect on Co(2)Z ferrite densification and the chemical reaction between the glass and Co(2)Z ferrites. The results indicate that BB35SZ glass can be used as a sintering aid to reduce the densification temperature of Co(2)Z ferrites from 1300 to 900 degrees C. 3(Ba0.9Bi0.1O) center dot 2(Co0.8Cu0.2O) center dot 12(Fe1.975Zn0.025O3) ferrite with 2 wt% BB35SZ glass can be densified below 900 degrees C, exhibiting an initial permeability of 3.4. This process provides a promising candidate for multilayer chip magnetic devices for microwave applications. (C) 2010 Elsevier B.V. All rights reserved.
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页码:1011 / 1014
页数:4
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