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Low-loss soft magnetic ferrite material for 5G and preparation method thereof
The invention belongs to the technical field of ferrite synthesis, and relates to a low-loss soft magnetic ferrite material for 5G and a preparation method thereof. The material comprises 36.8 mol%-38.5 mol% of modified Fe2O3, 26.4 mol%-28.2 mol% of ZnO and the balance of Mn3O4. The soft magnetic ferrite material further comprises additives which comprise at least four of CaCO3, Nb2O5, Bi2O3, V2O5, Co2O3 and MoO3. The soft magnetic ferrite material further comprises a distortion resisting agent. According to the invention, Fe2O3 is modified by wrapping SiC fibers in Fe2O3, the modified raw material can be doped from all directions in the crystal after material transportation and mixing, the doping effect is more obvious, meanwhile, a barrier layer formed by the distortion resisting agent on the surface of the crystal can reduce gaps and also can prevent crystal lattices from deforming, the distortion resisting agent can be volatilized in the subsequent sintering process, so that the ferrite can keep relatively high magnetic conductivity while relatively low dielectric loss is ensured.
本发明属于铁氧体合成技术领域，一种5g应用低损耗软磁铁氧体材料及其制备方法，原料包括改性Fe2O3、Mn3O4、ZnO的混合物，原料含量改性Fe2O3为36.8mol％～38.5mol％、ZnO为26.4mol％～28.2mol％，余量为Mn3O4，软磁铁氧体材料中还包括添加剂，添加剂包括CaCO3、Nb2O5、Bi2O3、V2O5、Co2O3、MoO3中的至少四种，软磁铁氧体材料中还包括阻畸剂，本发明采用Fe2O3内部包裹SiC纤维的方式进行改性Fe2O3，改性后的原料能够进行从运料混合后的晶体内部的各个方向进行掺杂，掺杂效果更显著，同时阻畸剂在晶体表面形成的阻隔层能够减少空隙的同时还能够使晶格不发生形变，并且该阻畸剂在后续的烧结过程中会挥发，使铁氧体能够在保证较低的介电损耗的同时还能够保持较高的磁导率。
Low-loss soft magnetic ferrite material for 5G and preparation method thereof
The invention belongs to the technical field of ferrite synthesis, and relates to a low-loss soft magnetic ferrite material for 5G and a preparation method thereof. The material comprises 36.8 mol%-38.5 mol% of modified Fe2O3, 26.4 mol%-28.2 mol% of ZnO and the balance of Mn3O4. The soft magnetic ferrite material further comprises additives which comprise at least four of CaCO3, Nb2O5, Bi2O3, V2O5, Co2O3 and MoO3. The soft magnetic ferrite material further comprises a distortion resisting agent. According to the invention, Fe2O3 is modified by wrapping SiC fibers in Fe2O3, the modified raw material can be doped from all directions in the crystal after material transportation and mixing, the doping effect is more obvious, meanwhile, a barrier layer formed by the distortion resisting agent on the surface of the crystal can reduce gaps and also can prevent crystal lattices from deforming, the distortion resisting agent can be volatilized in the subsequent sintering process, so that the ferrite can keep relatively high magnetic conductivity while relatively low dielectric loss is ensured.
本发明属于铁氧体合成技术领域，一种5g应用低损耗软磁铁氧体材料及其制备方法，原料包括改性Fe2O3、Mn3O4、ZnO的混合物，原料含量改性Fe2O3为36.8mol％～38.5mol％、ZnO为26.4mol％～28.2mol％，余量为Mn3O4，软磁铁氧体材料中还包括添加剂，添加剂包括CaCO3、Nb2O5、Bi2O3、V2O5、Co2O3、MoO3中的至少四种，软磁铁氧体材料中还包括阻畸剂，本发明采用Fe2O3内部包裹SiC纤维的方式进行改性Fe2O3，改性后的原料能够进行从运料混合后的晶体内部的各个方向进行掺杂，掺杂效果更显著，同时阻畸剂在晶体表面形成的阻隔层能够减少空隙的同时还能够使晶格不发生形变，并且该阻畸剂在后续的烧结过程中会挥发，使铁氧体能够在保证较低的介电损耗的同时还能够保持较高的磁导率。
Low-loss soft magnetic ferrite material for 5G and preparation method thereof
一种5g应用低损耗软磁铁氧体材料及其制备方法
YAO MUYOU (author) / SU RONGJIA (author) / LIN ZHENGCHONG (author) / TAN FUQING (author) / GUO HAO (author)
2021-08-03
Patent
Electronic Resource
Chinese
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