A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention provides a high-magnetoconductivity MnZn ferrite material capable of increasing resistivity and a preparation method thereof. The MnZn ferrite material comprise the following main components by molar percent: 50.5-51.9mol% of Fe2O3, 26.7-27.8mol% of MnO, 20.9-22.3mol% of ZnO and additives, wherein the additives comprise the following components in percentage by weight based on a soft magnetic ferrite material: 10-100ppm of SiO2, 100-700ppm of CaCO3, 300-400ppm of MoO3, 150-300ppm of V2O5, 100-150ppm of Nb2O5 and 100-150ppm of NiO. The preparation method comprises the following steps of preparing the raw materials, mixing, carrying out primary ball milling, pre-sintering, carrying out secondary ball milling, granulating, molding, sintering and the like to obtain the required high-magnetoconductivity MnZn ferrite material. The MnZn ferrite material has the characteristic of high resistivity.
The invention provides a high-magnetoconductivity MnZn ferrite material capable of increasing resistivity and a preparation method thereof. The MnZn ferrite material comprise the following main components by molar percent: 50.5-51.9mol% of Fe2O3, 26.7-27.8mol% of MnO, 20.9-22.3mol% of ZnO and additives, wherein the additives comprise the following components in percentage by weight based on a soft magnetic ferrite material: 10-100ppm of SiO2, 100-700ppm of CaCO3, 300-400ppm of MoO3, 150-300ppm of V2O5, 100-150ppm of Nb2O5 and 100-150ppm of NiO. The preparation method comprises the following steps of preparing the raw materials, mixing, carrying out primary ball milling, pre-sintering, carrying out secondary ball milling, granulating, molding, sintering and the like to obtain the required high-magnetoconductivity MnZn ferrite material. The MnZn ferrite material has the characteristic of high resistivity.
High-resistivity power type MnZn ferrite material and preparation method thereof
| European Patent Office | 2023
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| European Patent Office | 2015
| European Patent Office | 2015