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Ultrahigh-Bs low-loss manganese zinc ferrite material and preparation method thereof
The invention discloses an ultrahigh-Bs low-loss manganese zinc ferrite material and a preparation method thereof, the molecular formula of the material is as follows: 0.166 < = x < = 0.221, 0.009 < = k < = 0.074, 0.273 < = z < = 0.364, and x + y + z + k = 1. The invention relates to a preparation method of an ultrahigh-Bs low-loss manganese zinc ferrite material. The preparation method comprises the following steps: (1) raw material mixing; (2) presintering; (3) sanding; (4) spray granulation; and (5) pressing the powder subjected to spray granulation into a green body by using a forming machine, sintering in a bell kiln at the temperature of 1340-1390 DEG C for 3-6 hours, setting the atmosphere by using an equilibrium equation in the cooling process, and cooling to obtain the soft magnetic ferrite material. According to the ultrahigh-Bs low-loss manganese zinc ferrite material prepared by the design method and the manufacturing process disclosed by the invention, the Bs reaches 490mT at the temperature of 100 DEG C, meanwhile, the ultrahigh-Bs low-loss manganese zinc ferrite material has very low power loss at the high temperature of 100 DEG C, the power loss of the ultrahigh-Bs low-loss manganese zinc ferrite material under the test condition of 100kHz/200mT is about 820kW/m < 3 >, and the Curie temperature Tc is greater than 300 DEG C.
本发明公开了一种超高Bs低损耗锰锌铁氧体材料及其制备方法，其分子式构成为其中，0.166≤x≤0.221，0.009≤k≤0.074，0.273≤z≤0.364，且x+y+z+k＝1。一种超高Bs低损耗锰锌铁氧体材料制备方法，包括下列步骤(1)原料混合；(2)预烧；(3)砂磨；(4)喷雾造粒；(5)将喷雾造粒的粉料使用成型机压制成生坯，在钟罩窑中使用1340～1390℃之间的温度烧结3～6小时，降温过程中气氛使用平衡方程进行设定，冷却后即得到所述的软磁铁氧体材料。本发明的设计方法及制造工艺制备出的超高Bs低损耗锰锌铁氧体材料，在100℃时Bs达490mT，同时在100℃的高温下具有很低的功率损耗，其在100kHz/200mT测试条件下功率损耗为分别为820kW/m3左右，居里温度Tc＞300℃。
Ultrahigh-Bs low-loss manganese zinc ferrite material and preparation method thereof
The invention discloses an ultrahigh-Bs low-loss manganese zinc ferrite material and a preparation method thereof, the molecular formula of the material is as follows: 0.166 < = x < = 0.221, 0.009 < = k < = 0.074, 0.273 < = z < = 0.364, and x + y + z + k = 1. The invention relates to a preparation method of an ultrahigh-Bs low-loss manganese zinc ferrite material. The preparation method comprises the following steps: (1) raw material mixing; (2) presintering; (3) sanding; (4) spray granulation; and (5) pressing the powder subjected to spray granulation into a green body by using a forming machine, sintering in a bell kiln at the temperature of 1340-1390 DEG C for 3-6 hours, setting the atmosphere by using an equilibrium equation in the cooling process, and cooling to obtain the soft magnetic ferrite material. According to the ultrahigh-Bs low-loss manganese zinc ferrite material prepared by the design method and the manufacturing process disclosed by the invention, the Bs reaches 490mT at the temperature of 100 DEG C, meanwhile, the ultrahigh-Bs low-loss manganese zinc ferrite material has very low power loss at the high temperature of 100 DEG C, the power loss of the ultrahigh-Bs low-loss manganese zinc ferrite material under the test condition of 100kHz/200mT is about 820kW/m < 3 >, and the Curie temperature Tc is greater than 300 DEG C.
本发明公开了一种超高Bs低损耗锰锌铁氧体材料及其制备方法，其分子式构成为其中，0.166≤x≤0.221，0.009≤k≤0.074，0.273≤z≤0.364，且x+y+z+k＝1。一种超高Bs低损耗锰锌铁氧体材料制备方法，包括下列步骤(1)原料混合；(2)预烧；(3)砂磨；(4)喷雾造粒；(5)将喷雾造粒的粉料使用成型机压制成生坯，在钟罩窑中使用1340～1390℃之间的温度烧结3～6小时，降温过程中气氛使用平衡方程进行设定，冷却后即得到所述的软磁铁氧体材料。本发明的设计方法及制造工艺制备出的超高Bs低损耗锰锌铁氧体材料，在100℃时Bs达490mT，同时在100℃的高温下具有很低的功率损耗，其在100kHz/200mT测试条件下功率损耗为分别为820kW/m3左右，居里温度Tc＞300℃。
Ultrahigh-Bs low-loss manganese zinc ferrite material and preparation method thereof
一种超高Bs低损耗锰锌铁氧体材料及其制备方法
WANG WEIDA (author) / LI YONGQU (author) / LI MINGZHI (author) / TAN HAIFENG (author) / WANG SHIJIE (author)
2021-12-03
Patent
Electronic Resource
Chinese
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