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Sintering behaviors, magnetic and electric properties of Bi-Zn co-doped Co2Y ferrites |
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| Authors: | Hsing-I Hsiang Li-Then MeiChi-Shiung Hsi Wei-Cheng WuJer-Hao Wu Fu-Su Yen |
| Affiliation: | 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 Bi and Zn substitution effects on the sintering behaviors, magnetic and electric properties of hexagonal ferrites with a composition of 2(Ba1−xBixO)·2(ZnyCo0.8−yCu0.2O)·6(Fe2−x/3Znx/3O3) were investigated. The results showed that the addition of Bi and Zn can significantly promote Co2Y densification. The Y phase may be triggered to decompose into M and spinel phases at high sintering temperatures (above 1050 °C) for samples with excess Bi (x = 0.2) substitution, which resulted in densification and magnetic properties degradation. Co2Y ferrites with x = 0.1 and y = 0.4 sintered at 1050 °C show a relative density of 94%, a high initial permeability of 4.5, a quality factor (Q) of 50. |
| Keywords: | Co2Y ferrites Sinting Magnetic property Electric property |
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