A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention provides a ferrite material as well as a preparation method and application thereof, and belongs to the technical field of materials. The ferrite material provided by the invention is mainly prepared from ferric oxide, nickel oxide, bismuth trioxide, zinc oxide, manganese dioxide, copper oxide, cerium dioxide and indium trioxide according to a specific ratio, wherein the copper oxide and the cerium dioxide are used as sintering aids, so that the sintering temperature of a system is reduced, the grain size distribution is uniform, sintering densification can be completed at the sintering temperature of 1280-1320 DEG C; and the Bi element and the In element are doped into nickel ferrite lattices to cause lattice distortion, so that the saturation magnetization intensity and the bending strength of the nickel ferrite are improved. The ferrite material has stable saturation flux density in a temperature range of -55 to 85 DEG C, has good temperature stability and high bending strength, improves the cracking phenomenon of ferrite caused by compressive stress or thermal stress in the use process, and can be used in microwave devices.
本发明提供了一种铁氧体材料及其制备方法和应用，涉及材料技术领域。本发明提供的铁氧体材料，主要由特定配比的三氧化二铁、氧化镍、三氧化二铋、氧化锌、二氧化锰、氧化铜、二氧化铈和三氧化二铟制备得到，其中，氧化铜和二氧化铈作为烧结助剂，降低了体系的烧结温度，使得晶粒尺寸分布均匀，在1280℃～1320℃的烧结温度下即可完成烧结致密化；将Bi元素与In元素掺杂进入镍铁氧体晶格中引起晶格畸变，提高镍铁氧体的饱和磁化强度和其抗弯强度。该铁氧体材料在‑55～85℃的温度范围内的饱和磁感应强度稳定，具有较好的温度稳定性，抗弯强度高，改善了铁氧体在使用过程中因压应力或热应力产生的开裂现象，能够用于微波器件中。
The invention provides a ferrite material as well as a preparation method and application thereof, and belongs to the technical field of materials. The ferrite material provided by the invention is mainly prepared from ferric oxide, nickel oxide, bismuth trioxide, zinc oxide, manganese dioxide, copper oxide, cerium dioxide and indium trioxide according to a specific ratio, wherein the copper oxide and the cerium dioxide are used as sintering aids, so that the sintering temperature of a system is reduced, the grain size distribution is uniform, sintering densification can be completed at the sintering temperature of 1280-1320 DEG C; and the Bi element and the In element are doped into nickel ferrite lattices to cause lattice distortion, so that the saturation magnetization intensity and the bending strength of the nickel ferrite are improved. The ferrite material has stable saturation flux density in a temperature range of -55 to 85 DEG C, has good temperature stability and high bending strength, improves the cracking phenomenon of ferrite caused by compressive stress or thermal stress in the use process, and can be used in microwave devices.
本发明提供了一种铁氧体材料及其制备方法和应用，涉及材料技术领域。本发明提供的铁氧体材料，主要由特定配比的三氧化二铁、氧化镍、三氧化二铋、氧化锌、二氧化锰、氧化铜、二氧化铈和三氧化二铟制备得到，其中，氧化铜和二氧化铈作为烧结助剂，降低了体系的烧结温度，使得晶粒尺寸分布均匀，在1280℃～1320℃的烧结温度下即可完成烧结致密化；将Bi元素与In元素掺杂进入镍铁氧体晶格中引起晶格畸变，提高镍铁氧体的饱和磁化强度和其抗弯强度。该铁氧体材料在‑55～85℃的温度范围内的饱和磁感应强度稳定，具有较好的温度稳定性，抗弯强度高，改善了铁氧体在使用过程中因压应力或热应力产生的开裂现象，能够用于微波器件中。
Ferrite material as well as preparation method and application thereof
铁氧体材料及其制备方法和应用
MAO XU (author)
2021-12-10
Patent
Electronic Resource
Chinese
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