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Preparation method and application of anisotropic decahedral nickel-manganese-neodymium ferrite wave-absorbing material
The invention relates to a preparation method and application of an anisotropic decahedral nickel-manganese-neodymium ferrite wave-absorbing material. The invention belongs to the technical field of wave-absorbing materials. The problem that the matching thickness is large when existing ferrite absorbs low-frequency electromagnetic waves is solved. The method comprises the following steps: adding magnetic particles into a nitrate aqueous solution containing nickel, manganese, neodymium and iron, uniformly mixing, adding citric acid, and adjusting the pH value to obtain a mixed solution; and heating the mixed solution, drying in vacuum, heating, grinding, firing at high temperature, and grinding to obtain the anisotropic decahedral nickel-manganese-neodymium ferrite wave-absorbing material. The anisotropic decahedral nickel-manganese-neodymium ferrite wave-absorbing material prepared by the invention has a decahedral crystal structure and a plurality of crystal structures, and has excellent anisotropy, so that high magnetic loss is generated, the effective absorption bandwidth of the material is widened under a thinner matching thickness, and the light weight of the material is realized; the process has the effect of enhancing the magnetic loss of the material, and the method is simple, rich in raw material source and suitable for preparation of most low-frequency wave-absorbing materials.
一种各向异性十面体镍锰钕铁氧体吸波材料的制备方法及其应用。它属于吸波材料技术领域。它解决了现有铁氧体在吸收低频电磁波时存在匹配厚度较厚的问题。方法：含镍锰钕铁的硝酸盐水溶液中加磁性微粒并混匀，加柠檬酸，调PH值，得到混合溶液；混合溶液于加热后真空干燥，再加热、研磨、高温灼烧和研磨，获得各向异性十面体镍锰钕铁氧体吸波材料。本发明制备的各向异性十面体镍锰钕铁氧体吸波材料，具有十面体晶体结构，以及多种晶体结构，具有优异的各向异性，从而产生高磁损耗，有利于在更薄的匹配厚度下拓宽材料的有效吸收带宽，实现材料的轻质化，工艺具有增强材料磁损耗的效果，方法简单，原料来源丰富，适合绝大多数低频吸波材料的制备。
Preparation method and application of anisotropic decahedral nickel-manganese-neodymium ferrite wave-absorbing material
The invention relates to a preparation method and application of an anisotropic decahedral nickel-manganese-neodymium ferrite wave-absorbing material. The invention belongs to the technical field of wave-absorbing materials. The problem that the matching thickness is large when existing ferrite absorbs low-frequency electromagnetic waves is solved. The method comprises the following steps: adding magnetic particles into a nitrate aqueous solution containing nickel, manganese, neodymium and iron, uniformly mixing, adding citric acid, and adjusting the pH value to obtain a mixed solution; and heating the mixed solution, drying in vacuum, heating, grinding, firing at high temperature, and grinding to obtain the anisotropic decahedral nickel-manganese-neodymium ferrite wave-absorbing material. The anisotropic decahedral nickel-manganese-neodymium ferrite wave-absorbing material prepared by the invention has a decahedral crystal structure and a plurality of crystal structures, and has excellent anisotropy, so that high magnetic loss is generated, the effective absorption bandwidth of the material is widened under a thinner matching thickness, and the light weight of the material is realized; the process has the effect of enhancing the magnetic loss of the material, and the method is simple, rich in raw material source and suitable for preparation of most low-frequency wave-absorbing materials.
一种各向异性十面体镍锰钕铁氧体吸波材料的制备方法及其应用。它属于吸波材料技术领域。它解决了现有铁氧体在吸收低频电磁波时存在匹配厚度较厚的问题。方法：含镍锰钕铁的硝酸盐水溶液中加磁性微粒并混匀，加柠檬酸，调PH值，得到混合溶液；混合溶液于加热后真空干燥，再加热、研磨、高温灼烧和研磨，获得各向异性十面体镍锰钕铁氧体吸波材料。本发明制备的各向异性十面体镍锰钕铁氧体吸波材料，具有十面体晶体结构，以及多种晶体结构，具有优异的各向异性，从而产生高磁损耗，有利于在更薄的匹配厚度下拓宽材料的有效吸收带宽，实现材料的轻质化，工艺具有增强材料磁损耗的效果，方法简单，原料来源丰富，适合绝大多数低频吸波材料的制备。
Preparation method and application of anisotropic decahedral nickel-manganese-neodymium ferrite wave-absorbing material
一种各向异性十面体镍锰钕铁氧体吸波材料的制备方法及其应用
ZHONG BO (author) / DAN GANGGANG (author) / LIU DONGDONG (author) / XIA LONG (author) / HUANG XIAOXIAO (author) / JIANG DAHAI (author)
2024-03-08
Patent
Electronic Resource
Chinese
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