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Preparation method of nickel-zinc ferrite material with medium-high frequency, high Q value and low temperature coefficient
The invention relates to a preparation method of a nickel-zinc ferrite material with medium-high frequency, high Q value and low temperature coefficient, which comprises the following steps: 1) weighing raw materials including main formula raw materials and doped raw materials, the main formula raw materials including 55%-60% of Fe2O3, 18.5%-22.5% of NiO and 22%-24% of ZnO in percentage by total amount of substance; the doping raw materials comprise Co2O3, MnO2 and TiO2, (2) mixing the main formula raw materials with the doping raw materials, and pre-sintering to obtain a pre-sintered blank; (3) the pre-sintered blank is subjected to ball milling, and pre-sintered powder is obtained; and 4) preparing the pre-sintered powder into a blank with a required shape, sintering, and cooling to room temperature to obtain the medium-high frequency high-Q-value low-temperature-coefficient nickel-zinc ferrite material. The nickel-zinc ferrite material with the low temperature coefficient and the magnetic conductivity of about 200, prepared by the preparation method disclosed by the invention, is stable in temperature characteristic during working, the electrical property meets the wide-temperature stable use requirement from-55 DEG C to 125 DEG C, and the nickel-zinc ferrite material has a wide application prospect in the field of communication.
本发明涉及一种中高频高Q值、低温度系数镍锌铁氧体材料的制备方法，其包括1)称取原料，原料包括主配方原料和掺杂原料，主配方原料包括按总物质的量的百分比计的Fe2O3 55％～60％、NiO 18.5％～22.5％和ZnO 22％～24％；掺杂原料包括Co2O3、MnO2和TiO2，2)将主配方原料与掺杂原料混合后，进行预烧结，获得预烧结坯料；3)将预烧结坯料进行球磨，得到预烧结后粉料；4)将预烧结后粉料制成所需形状的坯件后，进行烧结，之后冷却至室温，得到中高频高Q值、低温度系数镍锌铁氧体材料。本发明制备获得的磁导率为200左右的低温度系数镍锌铁氧体材料，工作中温度特性稳定、电性能满足‑55℃到125℃宽温稳定使用要求，在通信领域中具有广阔的应用前景。
Preparation method of nickel-zinc ferrite material with medium-high frequency, high Q value and low temperature coefficient
The invention relates to a preparation method of a nickel-zinc ferrite material with medium-high frequency, high Q value and low temperature coefficient, which comprises the following steps: 1) weighing raw materials including main formula raw materials and doped raw materials, the main formula raw materials including 55%-60% of Fe2O3, 18.5%-22.5% of NiO and 22%-24% of ZnO in percentage by total amount of substance; the doping raw materials comprise Co2O3, MnO2 and TiO2, (2) mixing the main formula raw materials with the doping raw materials, and pre-sintering to obtain a pre-sintered blank; (3) the pre-sintered blank is subjected to ball milling, and pre-sintered powder is obtained; and 4) preparing the pre-sintered powder into a blank with a required shape, sintering, and cooling to room temperature to obtain the medium-high frequency high-Q-value low-temperature-coefficient nickel-zinc ferrite material. The nickel-zinc ferrite material with the low temperature coefficient and the magnetic conductivity of about 200, prepared by the preparation method disclosed by the invention, is stable in temperature characteristic during working, the electrical property meets the wide-temperature stable use requirement from-55 DEG C to 125 DEG C, and the nickel-zinc ferrite material has a wide application prospect in the field of communication.
本发明涉及一种中高频高Q值、低温度系数镍锌铁氧体材料的制备方法，其包括1)称取原料，原料包括主配方原料和掺杂原料，主配方原料包括按总物质的量的百分比计的Fe2O3 55％～60％、NiO 18.5％～22.5％和ZnO 22％～24％；掺杂原料包括Co2O3、MnO2和TiO2，2)将主配方原料与掺杂原料混合后，进行预烧结，获得预烧结坯料；3)将预烧结坯料进行球磨，得到预烧结后粉料；4)将预烧结后粉料制成所需形状的坯件后，进行烧结，之后冷却至室温，得到中高频高Q值、低温度系数镍锌铁氧体材料。本发明制备获得的磁导率为200左右的低温度系数镍锌铁氧体材料，工作中温度特性稳定、电性能满足‑55℃到125℃宽温稳定使用要求，在通信领域中具有广阔的应用前景。
Preparation method of nickel-zinc ferrite material with medium-high frequency, high Q value and low temperature coefficient
一种中高频高Q值、低温度系数镍锌铁氧体材料的制备方法
ZHANG JING (author) / JING FENG (author) / LYU HAIBO (author) / GAO XIYING (author)
2023-04-25
Patent
Electronic Resource
Chinese
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