Crystalline phases and magnetic properties of Cu-Bi-Zn co-doped Co2Z ferrites |
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| Authors: | Hsing-I Hsiang Li-Then MeiChi-Shiung Hsi Li-Bao ChengFu-Su Yen |
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| 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 |
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| Abstract: | The effects of Cu, Bi and Zn substitutions on the crystalline phase and magnetic properties of hexagonal ferrites with a composition of 3(Ba1−xBixO) 2(Co1−yCuyO)12(Fe2-(x/4)Zn(x/4)O3) were investigated. The results showed that the addition of Bi and Zn can significantly promote Z phase formation. The Z phase may be triggered to decompose into U and W phases resulting from the evaporation of Bi and segregation of Co-rich ferrites at high sintering temperatures for samples with large amounts of Bi and Zn. The initial permeability decreased with increasing x value because the Bi substitution promoted Z phase decomposition into U and W phases. |
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| Keywords: | Co2Z ferrites Sinting Magnetic property |
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