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Glass additive influence on the sintering behavior, microstructure and microwave magnetic properties of Cu-Bi-Zn co-doped Co2Z ferrites |
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| Authors: | Hsing-I Hsiang Li-Then MeiChi-Shiung Hsi Wei-Cheng WuLi-Bao Cheng Fu-Su Yen |
| Institution: | a Department of Resources Engineering, Particulate Materials Research Center, National Cheng Kung University, 70101 Tainan, Taiwan, ROC b Department of Materials Science and Engineering, National United University, Miaoli, Taiwan, ROC c Inpaq Technology Co. Ltd, Miaoli, Taiwan, ROC |
| Abstract: | The Bi2O3-B2O3-ZnO-SiO2 (BB35SZ) glass effects on the sintering behavior and microwave magnetic properties of Cu-Bi-Zn co-doped Co2Z ferrites were investigated to develop low-temperature-fired ferrites. The glass wetting characteristics on the Co2Z ferrite surface, X-ray diffractometer, scanning electron microscopy and a dilatometer were used to examine the BB35SZ glass effect on Co2Z ferrite densification and the chemical reaction between the glass and Co2Z ferrites. The results indicate that BB35SZ glass can be used as a sintering aid to reduce the densification temperature of Co2Z ferrites from 1300 to 900 °C. 3(Ba0.9Bi0.1O)·2(Co0.8Cu0.2O)·12(Fe1.975Zn0.025O3) ferrite with 2 wt% BB35SZ glass can be densified below 900 °C, exhibiting an initial permeability of 3.4. This process provides a promising candidate for multilayer chip magnetic devices for microwave applications. |
| Keywords: | Co2Z ferrites Sintering Magnetic property Glass |
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