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High-coercivity M-type barium ferrite densification technology for self-biased circulator
The invention provides a hexagonal ferrite with high coercive force and high density and a preparation method thereof. The M-type hexagonal ferrite material is prepared by doping 2.5% of Bi2O3, 2.0% of CuO and 0.1-1.0% of V2O5 to improve the density of M-type barium ferrite while ensuring the coercive force of the material, preparing a green body by combining a wet magnetic field forming process and then combining an optimized sintering process. The method is characterized in that the coercive force is greater than 2200Oe, and the density reaches 5.14 g/cm < 3 >.
本发明提供了一种具有高矫顽力和高密度的六角铁氧体及制备方法。在保证材料矫顽力的同时，通过掺杂2.5％Bi2O3、2.0％CuO和0.1％～1.0％V2O5来提高M型钡铁氧体密度，结合湿法磁场成型工艺制备生坯，再结合优化的烧结工艺，最终制备的M型六角铁氧体材料。其特征在于，矫顽力大于2200Oe，密度达到5.14g/cm3。
High-coercivity M-type barium ferrite densification technology for self-biased circulator
The invention provides a hexagonal ferrite with high coercive force and high density and a preparation method thereof. The M-type hexagonal ferrite material is prepared by doping 2.5% of Bi2O3, 2.0% of CuO and 0.1-1.0% of V2O5 to improve the density of M-type barium ferrite while ensuring the coercive force of the material, preparing a green body by combining a wet magnetic field forming process and then combining an optimized sintering process. The method is characterized in that the coercive force is greater than 2200Oe, and the density reaches 5.14 g/cm < 3 >.
本发明提供了一种具有高矫顽力和高密度的六角铁氧体及制备方法。在保证材料矫顽力的同时，通过掺杂2.5％Bi2O3、2.0％CuO和0.1％～1.0％V2O5来提高M型钡铁氧体密度，结合湿法磁场成型工艺制备生坯，再结合优化的烧结工艺，最终制备的M型六角铁氧体材料。其特征在于，矫顽力大于2200Oe，密度达到5.14g/cm3。
High-coercivity M-type barium ferrite densification technology for self-biased circulator
自偏置环行器用高矫顽力M型钡铁氧体致密化技术
ZHANG TAO (Autor:in) / JIANG XIAONA (Autor:in) / YU ZHONG (Autor:in) / WU CHUANJIAN (Autor:in) / SUN KE (Autor:in) / LAN ZHONGWEN (Autor:in)
31.05.2022
Patent
Elektronische Ressource
Chinesisch
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