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Yttrium-doped nickel-zinc-cobalt ferrite and preparation method thereof
The invention relates to nickel-zinc-cobalt ferrite and a preparation method thereof, and belongs to the technical field of soft magnetic ferrite materials. The technical problem to be solved by the invention is to provide the yttrium-doped nickel-zinc-cobalt ferrite prepared by high-performance microwave sintering. The molecular formula of the yttrium-doped nickel-zinc-cobalt ferrite is Ni < m >Zn < n > Co < 1 > m < n > Y < x > Fe < 2 > x < O4 >, and the electromagnetic performance of the material is improved by combining microwave sintering and sol-gel self-propagating on the basis of Ni Zn < n > Co < 1 > m < n > Fe < 2 > O < 4 > ferrite. Iron deficiency and Y < 3 + > are used for replacing Fe < 3 + > to improve the magnetic performance and the electrical performance of the material, the preparation process is simple, the process is pollution-free, the obtained material simultaneously obtains high sintering density, initial permeability and direct-current resistivity and low coercive force and dielectric loss, a key material can be provided for high-frequency inductors and capacitors. The current situation that related electronic components in the field of high-frequency weak current do not exist in China is solved, the core competitiveness of miniaturization and integration of high-frequency and even ultrahigh-frequency electronic devices in China is expected to be improved, and foreign technical blockage is broken through.
本发明涉及镍锌钴铁氧体及其制备方法，属于软磁铁氧体材料技术领域。本发明解决的技术问题是提供一种高性能微波烧结的掺杂钇的镍锌钴铁氧体。该掺杂钇的镍锌钴铁氧体的分子式为NimZnnCo1‑m‑nYxFe2‑xO4，是以NimZnnCo1‑m‑nFe2O4铁氧体为基础，在制备工艺上采用微波烧结与溶胶凝胶自蔓延相结合的方式提高材料电磁性能；使用缺铁，Y3+取代Fe3+以改善材料的磁性能和电性能，其制备工艺简单，过程无污染，所得材料同时获得了较高的烧结密度、起始磁导率、直流电阻率以及低的矫顽力、介质损耗，可为高频电感器、电容器提供关键的材料，解决国内缺乏高频弱电领域相关电子元器件的现状，有望提高我国在高频乃至超高频电子器件小型化、集成化的核心竞争力，打破国外技术封锁。
Yttrium-doped nickel-zinc-cobalt ferrite and preparation method thereof
The invention relates to nickel-zinc-cobalt ferrite and a preparation method thereof, and belongs to the technical field of soft magnetic ferrite materials. The technical problem to be solved by the invention is to provide the yttrium-doped nickel-zinc-cobalt ferrite prepared by high-performance microwave sintering. The molecular formula of the yttrium-doped nickel-zinc-cobalt ferrite is Ni < m >Zn < n > Co < 1 > m < n > Y < x > Fe < 2 > x < O4 >, and the electromagnetic performance of the material is improved by combining microwave sintering and sol-gel self-propagating on the basis of Ni Zn < n > Co < 1 > m < n > Fe < 2 > O < 4 > ferrite. Iron deficiency and Y < 3 + > are used for replacing Fe < 3 + > to improve the magnetic performance and the electrical performance of the material, the preparation process is simple, the process is pollution-free, the obtained material simultaneously obtains high sintering density, initial permeability and direct-current resistivity and low coercive force and dielectric loss, a key material can be provided for high-frequency inductors and capacitors. The current situation that related electronic components in the field of high-frequency weak current do not exist in China is solved, the core competitiveness of miniaturization and integration of high-frequency and even ultrahigh-frequency electronic devices in China is expected to be improved, and foreign technical blockage is broken through.
本发明涉及镍锌钴铁氧体及其制备方法，属于软磁铁氧体材料技术领域。本发明解决的技术问题是提供一种高性能微波烧结的掺杂钇的镍锌钴铁氧体。该掺杂钇的镍锌钴铁氧体的分子式为NimZnnCo1‑m‑nYxFe2‑xO4，是以NimZnnCo1‑m‑nFe2O4铁氧体为基础，在制备工艺上采用微波烧结与溶胶凝胶自蔓延相结合的方式提高材料电磁性能；使用缺铁，Y3+取代Fe3+以改善材料的磁性能和电性能，其制备工艺简单，过程无污染，所得材料同时获得了较高的烧结密度、起始磁导率、直流电阻率以及低的矫顽力、介质损耗，可为高频电感器、电容器提供关键的材料，解决国内缺乏高频弱电领域相关电子元器件的现状，有望提高我国在高频乃至超高频电子器件小型化、集成化的核心竞争力，打破国外技术封锁。
Yttrium-doped nickel-zinc-cobalt ferrite and preparation method thereof
掺杂钇的镍锌钴铁氧体及其制备方法
LI LEZHONG (author) / WU XIAOHUI (author) / WU BO (author) / WANG RUI (author) / TU XIAOQIANG (author) / HE LEI (author)
2021-01-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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