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| Effect of Heat Treatment Temperature on Magnetic Properties of Ba2Co0.6Zn1.0Cu0.4Fe12O22(Co2Y) |
| CHEN Wenguo, DAI Jianqing, DING Yaomin, XIA Jingbing |
| Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093 |
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Cite this article:
CHEN Wenguo DAI Jianqing DING Yaomin XIA Jingbing. Effect of Heat Treatment Temperature on Magnetic Properties of Ba2Co0.6Zn1.0Cu0.4Fe12O22(Co2Y). Chin J Mater Res, 2011, 25(3): 308-312.
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Abstract The Y-type hexaferrite powder was synthesized by co-precipitation, the homogenous precursor with fine particles and high activity was calcined at 600–1050 and the sample properties were characterized by laser particle size analyzer (LPS), energy dispersive spectrometer (EDS), vibrating sample magnetometer (VSM) and HP4291A impedance analyzer. The results showed that the particle sizes are around 3 μm. The well defined hexagonal was formed at lower temperature (900 ), accompanying with crystal structure transition. The saturation magnetization increases with the ascending temperature, while initial permeability decreases with increasing heat treatment temperature first but rises to apex in the end. After sintered at 900oC, the specific saturation magnetization, coercitive force, initial permeability and factor of quality of the sample were 17.262 A·m2·kg−1, 5.146 kA·m−1, and μi ≈7, Q ≈13.4 (100 MHz) respectively.
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Received: 06 January 2011
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| Fund: Supported by the Program for Introduction of Young Talents No.2006PY01-09. |
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