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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Niena, H.H. Liang, T.J. Chen, J.F. Changchien, S.K. |
| Copyright Year | 2007 |
| Description | Author affiliation: Nat. Cheng Kung Univ., Tainan (Niena, H.H.; Liang, T.J.; Chen, J.F.; Changchien, S.K.) |
| Abstract | This paper investigates the electrical and magnetic properties of Cobalt-substituted Manganese-Zinc soft ferrite by the equivalent lumped elements acquired from the appropriate equivalent electrical circuit of poly crystalline ferrite. The equivalent lumped circuit, combined with equivalent lumped resistances and capacitance, is applied to investigate the effect of microstructure on electrical and magnetic properties of Cobalt-substituted Manganese-Zinc ferrites. Replacing a small portion of $Fe^{2+}$ with $Co^{2+}$ remarkably increases the bulk resistivity of the MnZn ferrite and decreases the core loss with lower eddy current loss. A longer isothermal duration causes grain growth and forms a larger equivalent capacitance, which conducts a drop of hysteresis loss. However, excess substitution of $Co^{2+}$ for $Fe^{2+}$ is disadvantageous to magnetic permeability and raises core loss. The DC resistivity and magnetic permeability were measured by impedance analyzer at room temperature. The total loss of $Mn_{0.58}$ $Zn_{037}Co_{0.01}Fe_{2.04}O_{4}$ ferrite core does not exceed 420 m $W/cm^{3}$ at 300 kHz/70 mT. |
| Starting Page | 332 |
| Ending Page | 332 |
| File Size | 275574 |
| Page Count | 1 |
| File Format | |
| ISBN | 0769528821 |
| DOI | 10.1109/ICICIC.2007.546 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2007-09-05 |
| Publisher Place | Japan |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Ferrites Core loss Crystallization Conductivity Capacitance Crystal microstructure Iron Permeability Magnetic circuits Magnetic properties |
| Content Type | Text |
| Resource Type | Article |
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