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Wide-temperature super-large-current-resistant MnZn ferrite material and preparation method thereof
The invention is suitable for the technical field of soft magnetism, and provides a wide-temperature and ultra-large-current-resistant MnZn ferrite material and a preparation method thereof.The wide-temperature and ultra-large-current-resistant MnZn ferrite material is composed of main components and auxiliary components; wherein the main components comprise the following components in percentage by oxide: 51.80 to 54.00 mol percent of Fe2O3, 15.00 to 18.00 mol percent of ZnO, and 29.50 to 32.00 mol percent of MnO; the auxiliary components comprise more than four of the following main components in percentage by weight: 100 to 500 ppm of Nb2O5, 200 to 600 ppm of ZrO2, 100 to 500 ppm of TiO2, 300 to 800 ppm of CaCO3, 10 to 80 ppm of SiO2, 2000 to 5000 ppm of Co2O3, and 100 to 500 ppm of V2O5. Herein, the superposition characteristics of -40 DEG C and 85 DEG C, the magnetic conductivity and the incremental magnetic conductivity of the material are comprehensively adjusted and controlled by adjusting and controlling the content of Fe2O3 and the content of additives Co2O3 and V2O5, so that the problem that negative temperature and high temperature of an existing material cannot be considered thoroughly is solved. The material has good direct current superposition characteristics at minus 40 DEG C and 85 DEG C, and the preparation method is simple and easy to implement.
本发明适用于软磁技术领域，提供了一种宽温耐超大电流MnZn铁氧体材料及其制备方法，一种宽温耐超大电流MnZn铁氧体材料，由主成分和辅助成分组成；主成分及含量以氧化物计算为：Fe2O3：51.80～54.00mol％，ZnO：15.00～18.00mol％，MnO：29.50～32.00mol％；按主成分总重量百分比计的辅助成分为：Nb2O5：100～500ppm，ZrO2：200～600ppm，TiO2：100～500ppm，CaCO3：300～800ppm，SiO2：10～80ppm，Co2O3：2000～5000ppm，V2O5：100～500ppm中的四种以上。本发明通过调整控制Fe2O3含量与添加物Co2O3和V2O5含量来综合调整控制‑40℃及85℃叠加特性、材料的磁导率及增量磁导率，解决了现有材料负温，高温兼顾不周的问题，本材料在负温‑40℃及85℃处其直流叠加特性均良好，且本发明制备方法简便易行。
Wide-temperature super-large-current-resistant MnZn ferrite material and preparation method thereof
The invention is suitable for the technical field of soft magnetism, and provides a wide-temperature and ultra-large-current-resistant MnZn ferrite material and a preparation method thereof.The wide-temperature and ultra-large-current-resistant MnZn ferrite material is composed of main components and auxiliary components; wherein the main components comprise the following components in percentage by oxide: 51.80 to 54.00 mol percent of Fe2O3, 15.00 to 18.00 mol percent of ZnO, and 29.50 to 32.00 mol percent of MnO; the auxiliary components comprise more than four of the following main components in percentage by weight: 100 to 500 ppm of Nb2O5, 200 to 600 ppm of ZrO2, 100 to 500 ppm of TiO2, 300 to 800 ppm of CaCO3, 10 to 80 ppm of SiO2, 2000 to 5000 ppm of Co2O3, and 100 to 500 ppm of V2O5. Herein, the superposition characteristics of -40 DEG C and 85 DEG C, the magnetic conductivity and the incremental magnetic conductivity of the material are comprehensively adjusted and controlled by adjusting and controlling the content of Fe2O3 and the content of additives Co2O3 and V2O5, so that the problem that negative temperature and high temperature of an existing material cannot be considered thoroughly is solved. The material has good direct current superposition characteristics at minus 40 DEG C and 85 DEG C, and the preparation method is simple and easy to implement.
本发明适用于软磁技术领域，提供了一种宽温耐超大电流MnZn铁氧体材料及其制备方法，一种宽温耐超大电流MnZn铁氧体材料，由主成分和辅助成分组成；主成分及含量以氧化物计算为：Fe2O3：51.80～54.00mol％，ZnO：15.00～18.00mol％，MnO：29.50～32.00mol％；按主成分总重量百分比计的辅助成分为：Nb2O5：100～500ppm，ZrO2：200～600ppm，TiO2：100～500ppm，CaCO3：300～800ppm，SiO2：10～80ppm，Co2O3：2000～5000ppm，V2O5：100～500ppm中的四种以上。本发明通过调整控制Fe2O3含量与添加物Co2O3和V2O5含量来综合调整控制‑40℃及85℃叠加特性、材料的磁导率及增量磁导率，解决了现有材料负温，高温兼顾不周的问题，本材料在负温‑40℃及85℃处其直流叠加特性均良好，且本发明制备方法简便易行。
Wide-temperature super-large-current-resistant MnZn ferrite material and preparation method thereof
一种宽温耐超大电流MnZn铁氧体材料及其制备方法
WANG WEI (author) / WANG JISEN (author) / DING WUHUI (author) / DING SIHAI (author) / ZHANG HONG'AN (author)
2021-08-24
Patent
Electronic Resource
Chinese
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