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Ferrite wave-absorbing material with mixed spinel structure and preparation method of ferrite wave-absorbing material
The invention provides a ferrite wave-absorbing material with a mixed spinel structure and a preparation method of the ferrite wave-absorbing material. The ferrite wave-absorbing material has a molecular formula of Co1-xNixFe2O4 (x= 0, 0.1, 0.3 or 0.5). The preparation method comprises the following steps: by taking analytically pure cobalt oxide (Co(OH)2), iron oxide (Fe2O3) and nickel carbonate (NiCO3) as raw materials, weighing samples according to the stoichiometric ratio of experimental components, and putting the weighed samples into an agate ball milling tank; determining the mass of the weighed sample, weighing a certain amount of agate beads, and putting the agate beads into an agate ball-milling tank for ball-milling and uniform mixing; adding alcohol is added to submerge all samples and exceed about 1-2 mm, and providing a lubricated environment; placing a sample obtained after ball milling is completed in a drying box to be dried for 16-24 h, and separating materials and agate beads out through a screen, wherein the particle size of the sample prepared through the method reaches the nanometer level. The ferrite wave-absorbing material with the mixed spinel structure has a very good microwave absorbing effect in a microwave band of 2-18GHz, is wide in absorbing frequency band, and has the advantages that the preparation process is simple, the preparation process is easy to regulate and control and the like.
本发明提供一种混合尖晶石结构的铁氧体吸波材料与制备方法，其分子式为Co1‑xNixFe2O4(x＝0,0.1,0.3,0.5)。制备过程包括将分析纯级的氧化钴(Co(OH)2)、氧化铁(Fe2O3)和碳酸镍(NiCO3)作为原料，按实验组分的化学计量比称取样品，将称取的样品置于玛瑙球磨罐中；确定出称量的样品质量，称取一定量的玛瑙珠子放进玛瑙球磨罐中用作球磨均匀混料。添加酒精至淹没所有样品且超过1～2mm左右，提供一个可润滑的环境。将球磨完成的样品放在干燥箱中干燥16～24小时，通过筛网分离出物料和玛瑙珠子，该方法制备出的样品颗粒尺寸均达到纳米级别。本发明混合尖晶石结构的铁氧体吸波材料，在2～18GHz微波波段内具备很好的微波吸收效果，吸收频带宽，且具有制备工艺简单、制备过程容易调控等优点。
Ferrite wave-absorbing material with mixed spinel structure and preparation method of ferrite wave-absorbing material
The invention provides a ferrite wave-absorbing material with a mixed spinel structure and a preparation method of the ferrite wave-absorbing material. The ferrite wave-absorbing material has a molecular formula of Co1-xNixFe2O4 (x= 0, 0.1, 0.3 or 0.5). The preparation method comprises the following steps: by taking analytically pure cobalt oxide (Co(OH)2), iron oxide (Fe2O3) and nickel carbonate (NiCO3) as raw materials, weighing samples according to the stoichiometric ratio of experimental components, and putting the weighed samples into an agate ball milling tank; determining the mass of the weighed sample, weighing a certain amount of agate beads, and putting the agate beads into an agate ball-milling tank for ball-milling and uniform mixing; adding alcohol is added to submerge all samples and exceed about 1-2 mm, and providing a lubricated environment; placing a sample obtained after ball milling is completed in a drying box to be dried for 16-24 h, and separating materials and agate beads out through a screen, wherein the particle size of the sample prepared through the method reaches the nanometer level. The ferrite wave-absorbing material with the mixed spinel structure has a very good microwave absorbing effect in a microwave band of 2-18GHz, is wide in absorbing frequency band, and has the advantages that the preparation process is simple, the preparation process is easy to regulate and control and the like.
本发明提供一种混合尖晶石结构的铁氧体吸波材料与制备方法，其分子式为Co1‑xNixFe2O4(x＝0,0.1,0.3,0.5)。制备过程包括将分析纯级的氧化钴(Co(OH)2)、氧化铁(Fe2O3)和碳酸镍(NiCO3)作为原料，按实验组分的化学计量比称取样品，将称取的样品置于玛瑙球磨罐中；确定出称量的样品质量，称取一定量的玛瑙珠子放进玛瑙球磨罐中用作球磨均匀混料。添加酒精至淹没所有样品且超过1～2mm左右，提供一个可润滑的环境。将球磨完成的样品放在干燥箱中干燥16～24小时，通过筛网分离出物料和玛瑙珠子，该方法制备出的样品颗粒尺寸均达到纳米级别。本发明混合尖晶石结构的铁氧体吸波材料，在2～18GHz微波波段内具备很好的微波吸收效果，吸收频带宽，且具有制备工艺简单、制备过程容易调控等优点。
Ferrite wave-absorbing material with mixed spinel structure and preparation method of ferrite wave-absorbing material
一种混合尖晶石结构的铁氧体吸波材料与制备方法
YAO QINGRONG (author) / TONG ZHAOFEI (author) / WANG JIANG (author) / LU ZHAO (author) / RAO GUANGHUI (author)
2021-06-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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