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Low-temperature sintered high-frequency low-loss MnZn power ferrite and preparation method thereof
The invention discloses a low-temperature sintered high-frequency low-loss MnZn power ferrite, and belongs to the technical field of ferrite preparation. Comprising a main component and an auxiliary component, and the main component comprises 54.5-56.5 mol% of Fe2O3, 4.5-7.5 mol% of ZnO and the balance of MnO according to the molar percentage of oxides; and on the basis of a pre-sintered material obtained after the main component is pre-sintered, the auxiliary components comprise the following components in percentage by weight: 0.001 to 0.05 percent of Sb2O3, 0.01 to 0.03 percent of Nb2O5, 0.1 to 0.4 percent of Co2O3, 0.02 to 0.10 percent of CaCO3 and 0.00 to 0.01 percent of SiO2. According to the invention, Sb2O3 with high resistivity and low melting point is adopted as a fluxing agent, and traditional V2O5 is replaced by Sb2O3, so that the high-frequency loss of the MnZn ferrite is improved while the sintering temperature is reduced, and the preparation method has important significance on low-temperature sintering of the MnZn ferrite.
一种低温烧结高频低损耗MnZn功率铁氧体，属于铁氧体制备技术领域。包括主成分与辅助成分，主成分按氧化物摩尔百分数计，包括54.5～56.5mol％Fe2O3和4.5～7.5mol％ZnO，其余为MnO；以主成分预烧后的预烧料为基准，辅助成分包括0.001～0.05wt％Sb2O3、0.01～0.03wt％Nb2O5、0.1～0.4wt％Co2O3、0.02～0.10wt％CaCO3和0.00～0.01wt％SiO2。本发明采用具有高电阻率与低熔点的Sb2O3作为助熔剂，通过Sb2O3取代传统的V2O5，在降低烧结温度的同时改善MnZn铁氧体的高频损耗，对低温烧结MnZn铁氧体具有重要意义。
Low-temperature sintered high-frequency low-loss MnZn power ferrite and preparation method thereof
The invention discloses a low-temperature sintered high-frequency low-loss MnZn power ferrite, and belongs to the technical field of ferrite preparation. Comprising a main component and an auxiliary component, and the main component comprises 54.5-56.5 mol% of Fe2O3, 4.5-7.5 mol% of ZnO and the balance of MnO according to the molar percentage of oxides; and on the basis of a pre-sintered material obtained after the main component is pre-sintered, the auxiliary components comprise the following components in percentage by weight: 0.001 to 0.05 percent of Sb2O3, 0.01 to 0.03 percent of Nb2O5, 0.1 to 0.4 percent of Co2O3, 0.02 to 0.10 percent of CaCO3 and 0.00 to 0.01 percent of SiO2. According to the invention, Sb2O3 with high resistivity and low melting point is adopted as a fluxing agent, and traditional V2O5 is replaced by Sb2O3, so that the high-frequency loss of the MnZn ferrite is improved while the sintering temperature is reduced, and the preparation method has important significance on low-temperature sintering of the MnZn ferrite.
一种低温烧结高频低损耗MnZn功率铁氧体，属于铁氧体制备技术领域。包括主成分与辅助成分，主成分按氧化物摩尔百分数计，包括54.5～56.5mol％Fe2O3和4.5～7.5mol％ZnO，其余为MnO；以主成分预烧后的预烧料为基准，辅助成分包括0.001～0.05wt％Sb2O3、0.01～0.03wt％Nb2O5、0.1～0.4wt％Co2O3、0.02～0.10wt％CaCO3和0.00～0.01wt％SiO2。本发明采用具有高电阻率与低熔点的Sb2O3作为助熔剂，通过Sb2O3取代传统的V2O5，在降低烧结温度的同时改善MnZn铁氧体的高频损耗，对低温烧结MnZn铁氧体具有重要意义。
Low-temperature sintered high-frequency low-loss MnZn power ferrite and preparation method thereof
一种低温烧结高频低损耗MnZn功率铁氧体及制备方法
DENG TENGBIN (author) / FU YEPING (author) / YU ZHONG (author) / LAN ZHONGWEN (author) / WU CHUANJIAN (author) / SUN KE (author) / JIANG XIAONA (author) / LI QIFAN (author) / YU YONG (author)
2024-06-14
Patent
Electronic Resource
Chinese
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