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Ka-band high-power gyromagnetic lithium zinc ferrite and preparation method thereof
The invention discloses Ka-band high-power gyromagnetic lithium zinc ferrite and a preparation method thereof, and belongs to the technical field of microwave ferrite material preparation. Comprising a main material and additives, the main material is Li < 0.347 + 0.5 x > Zn < 0.3 > Ni < 0.006 > Mn < 0.056 > Ti < x > Fe < 2.291-1.5 x > O < 4 >, and the additives are Bi < 2 > O < 3 >, Sb < 2 > O < 3 > and Co < 2 > O < 3 >. The main formula system adopted by the invention is beneficial to obtaining low coercive force and remanence temperature coefficient; by optimizing a sintering process and by virtue of dual effects of two additives, a ferrite sample is uniform in microscopic morphology and uniform and moderate in grain size, so that the power bearing capacity and the sintering body density of the material are improved, the porosity of the material is greatly reduced, and the spin wave line width of the material is improved; and the lithium zinc ferrite material for Ka-band high-power ferrite switches and phase shifters, which has low loss and low coercive force, can be obtained.
一种Ka波段高功率旋磁锂锌铁氧体及其制备方法，属于微波铁氧体材料制备技术领域。包括主料和添加剂，主料为Li0.347+0.5xZn0.3Ni0.006Mn0.056TixFe2.291‑1.5xO4，添加剂为：Bi2O3、Sb2O3和Co2O3。本发明采用的主配方体系有利于获得低矫顽力和剩磁温度系数；通过优化烧结工艺，借助两种添加剂的双重作用，使铁氧体样品显微形貌均匀，晶粒大小均匀适中，有利于提高材料的功率承受能力和烧结体密度，大幅降低材料的气孔率并提升材料自旋波线宽，有助于获得低损耗和低矫顽力的Ka波段高功率铁氧体开关和移相器用锂锌铁氧体材料。
Ka-band high-power gyromagnetic lithium zinc ferrite and preparation method thereof
The invention discloses Ka-band high-power gyromagnetic lithium zinc ferrite and a preparation method thereof, and belongs to the technical field of microwave ferrite material preparation. Comprising a main material and additives, the main material is Li < 0.347 + 0.5 x > Zn < 0.3 > Ni < 0.006 > Mn < 0.056 > Ti < x > Fe < 2.291-1.5 x > O < 4 >, and the additives are Bi < 2 > O < 3 >, Sb < 2 > O < 3 > and Co < 2 > O < 3 >. The main formula system adopted by the invention is beneficial to obtaining low coercive force and remanence temperature coefficient; by optimizing a sintering process and by virtue of dual effects of two additives, a ferrite sample is uniform in microscopic morphology and uniform and moderate in grain size, so that the power bearing capacity and the sintering body density of the material are improved, the porosity of the material is greatly reduced, and the spin wave line width of the material is improved; and the lithium zinc ferrite material for Ka-band high-power ferrite switches and phase shifters, which has low loss and low coercive force, can be obtained.
一种Ka波段高功率旋磁锂锌铁氧体及其制备方法，属于微波铁氧体材料制备技术领域。包括主料和添加剂，主料为Li0.347+0.5xZn0.3Ni0.006Mn0.056TixFe2.291‑1.5xO4，添加剂为：Bi2O3、Sb2O3和Co2O3。本发明采用的主配方体系有利于获得低矫顽力和剩磁温度系数；通过优化烧结工艺，借助两种添加剂的双重作用，使铁氧体样品显微形貌均匀，晶粒大小均匀适中，有利于提高材料的功率承受能力和烧结体密度，大幅降低材料的气孔率并提升材料自旋波线宽，有助于获得低损耗和低矫顽力的Ka波段高功率铁氧体开关和移相器用锂锌铁氧体材料。
Ka-band high-power gyromagnetic lithium zinc ferrite and preparation method thereof
Ka波段高功率旋磁锂锌铁氧体及其制备方法
JIANG XIAONA (author) / SU QIANFA (author) / YU ZHONG (author) / SUN KE (author) / WU CHUANJIAN (author) / LI QIFAN (author) / LAN ZHONGWEN (author)
2024-06-14
Patent
Electronic Resource
Chinese
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