Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
M-type strontium ferrite with high remanence ratio and low ferromagnetic resonance linewidth and preparation method thereof
The invention discloses M-type strontium ferrite with high remanence ratio and low ferromagnetic resonance linewidth and a preparation method thereof, and belongs to ferrite and a preparation method thereof. The M-type strontium ferrite provided by the invention is prepared from a main material and an additive, the main material is prepared from the following raw materials in percentage: 80 to 83 mol percent of Fe2O3, 5 to 9 mol percent of SrCO3, 2 to 5 mol percent of CaCO3, 1 to 3 mol percent of La2O3, 1 to 3 mol percent of Co2O3, 1 to 3 mol percent of Al2O3 and 1 to 3 mol percent of CuO; the additive is prepared from the following components in percentage by weight: 0.5 to 1 weight percent of Bi2O3, 0.1 to 0.4 weight percent of BaTiO3 and 0.4 to 0.8 weight percent of B2O3. The preparation method provided by the invention comprises the following steps: mixing the raw materials in the main material, performing ball milling, performing primary grinding material pre-sintering, mixing the pre-sintered material and the additive, performing ball milling, performing secondary grinding material, pressing and forming in a wet magnetic field forming machine, heating a green body to 1000 DEG C, and then performing heat treatment according to a rapid heating and cooling method. The M-type strontium ferrite provided by the invention has a high anisotropic field, a relatively high remanence ratio and a relatively low ferromagnetic resonance line width.
本发明公开了一种高剩磁比、低铁磁共振线宽M型锶铁氧体及其制备方法，属于铁氧体及其制备方法。本发明提供的M型锶铁氧体由主料和添加剂制备而成；主料由下列百分比的原料组成：80～83mol% Fe2O3、5～9mol% SrCO3、2～5mol% CaCO3、1～3mol% La2O3、1～3mol% Co2O3、1～3mol% Al2O3、1～3mol% CuO；添加剂由占主料重量百分比的0.5～1 wt% Bi2O3、0.1～0.4 wt% BaTiO3、0.4～0.8 wt% B2O3组成。本发明提供的制备方法是：将主料中的各原料混合、球磨，一次磨料预烧，预烧料与添加剂混合、球磨，二次磨料置于湿式磁场成型机中压制成型，将生坯加热至1000℃，然后按快速升降温方法进行热处理。本发明提供的M型锶铁氧体具有高的各向异性场和较高的剩磁比、以及较低的铁磁共振线宽。
M-type strontium ferrite with high remanence ratio and low ferromagnetic resonance linewidth and preparation method thereof
The invention discloses M-type strontium ferrite with high remanence ratio and low ferromagnetic resonance linewidth and a preparation method thereof, and belongs to ferrite and a preparation method thereof. The M-type strontium ferrite provided by the invention is prepared from a main material and an additive, the main material is prepared from the following raw materials in percentage: 80 to 83 mol percent of Fe2O3, 5 to 9 mol percent of SrCO3, 2 to 5 mol percent of CaCO3, 1 to 3 mol percent of La2O3, 1 to 3 mol percent of Co2O3, 1 to 3 mol percent of Al2O3 and 1 to 3 mol percent of CuO; the additive is prepared from the following components in percentage by weight: 0.5 to 1 weight percent of Bi2O3, 0.1 to 0.4 weight percent of BaTiO3 and 0.4 to 0.8 weight percent of B2O3. The preparation method provided by the invention comprises the following steps: mixing the raw materials in the main material, performing ball milling, performing primary grinding material pre-sintering, mixing the pre-sintered material and the additive, performing ball milling, performing secondary grinding material, pressing and forming in a wet magnetic field forming machine, heating a green body to 1000 DEG C, and then performing heat treatment according to a rapid heating and cooling method. The M-type strontium ferrite provided by the invention has a high anisotropic field, a relatively high remanence ratio and a relatively low ferromagnetic resonance line width.
本发明公开了一种高剩磁比、低铁磁共振线宽M型锶铁氧体及其制备方法，属于铁氧体及其制备方法。本发明提供的M型锶铁氧体由主料和添加剂制备而成；主料由下列百分比的原料组成：80～83mol% Fe2O3、5～9mol% SrCO3、2～5mol% CaCO3、1～3mol% La2O3、1～3mol% Co2O3、1～3mol% Al2O3、1～3mol% CuO；添加剂由占主料重量百分比的0.5～1 wt% Bi2O3、0.1～0.4 wt% BaTiO3、0.4～0.8 wt% B2O3组成。本发明提供的制备方法是：将主料中的各原料混合、球磨，一次磨料预烧，预烧料与添加剂混合、球磨，二次磨料置于湿式磁场成型机中压制成型，将生坯加热至1000℃，然后按快速升降温方法进行热处理。本发明提供的M型锶铁氧体具有高的各向异性场和较高的剩磁比、以及较低的铁磁共振线宽。
M-type strontium ferrite with high remanence ratio and low ferromagnetic resonance linewidth and preparation method thereof
高剩磁比、低铁磁共振线宽M型锶铁氧体及其制备方法
YAN ZHOUMIN (Autor:in) / ZHANG JING (Autor:in) / LI HUIQIN (Autor:in) / CHU TAO (Autor:in) / WANG YU (Autor:in) / GAO ZHIHONG (Autor:in)
12.09.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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