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Strontium ferrite wave-absorbing material as well as preparation method and application thereof
The invention relates to a strontium ferrite wave-absorbing material as well as a preparation method and application thereof, and belongs to the technical field of electromagnetic wave absorbing materials. The chemical formula of the strontium ferrite wave-absorbing material is SraBabFezPrxCeyO19, wherein 0.5 < = a < = 1.0, 0 < = b < = 0.5, 10.4 < = z < = 11.8, 0.1 < = x < = 0.8, and 0.1 < = y < = 0.8. The preparation method comprises the following steps: mixing raw materials, adding water for dissolving, and adding citric acid to form a solution; adjusting the pH value, heating and stirring to form wet gel; drying and carrying out self-propagating combustion to obtain precursor powder; and heating and calcining, and cooling along with the furnace to obtain the strontium ferrite material. The strontium ferrite wave-absorbing material can cover low, medium and high frequency bands, has a wide absorption frequency band, is thin in absorption thickness and high in coercive force and saturation magnetization intensity, meets the requirements of current electronic products on'thinness, lightness, width and strength 'of the wave-absorbing material, and has very high application value.
本发明涉及一种锶铁氧体吸波材料及其制备方法与应用，属于电磁波吸收材料技术领域。本发明的锶铁氧体吸波材料的化学式为：SraBabFezPrxCeyO19，其中0.5≤a≤1.0，0≤b≤0.5，10.4≤z≤11.8，0.1≤x≤0.8，0.1≤y≤0.8；其制备步骤包括：混合原料并加水溶解，加入柠檬酸形成溶液；调节pH，加热搅拌，形成湿凝胶；干燥，自蔓延燃烧，得前驱体粉末；升温煅烧，随炉冷却，得到所述锶铁氧体材料。本发明的锶铁氧体吸波材料可覆盖低、中、高频段，具较宽的吸收频带、吸收厚度薄，且矫顽力、饱和磁化强度高，符合当下电子产品对吸波材料“薄、轻、宽、强”的需求，具很高的应用价值。
Strontium ferrite wave-absorbing material as well as preparation method and application thereof
The invention relates to a strontium ferrite wave-absorbing material as well as a preparation method and application thereof, and belongs to the technical field of electromagnetic wave absorbing materials. The chemical formula of the strontium ferrite wave-absorbing material is SraBabFezPrxCeyO19, wherein 0.5 < = a < = 1.0, 0 < = b < = 0.5, 10.4 < = z < = 11.8, 0.1 < = x < = 0.8, and 0.1 < = y < = 0.8. The preparation method comprises the following steps: mixing raw materials, adding water for dissolving, and adding citric acid to form a solution; adjusting the pH value, heating and stirring to form wet gel; drying and carrying out self-propagating combustion to obtain precursor powder; and heating and calcining, and cooling along with the furnace to obtain the strontium ferrite material. The strontium ferrite wave-absorbing material can cover low, medium and high frequency bands, has a wide absorption frequency band, is thin in absorption thickness and high in coercive force and saturation magnetization intensity, meets the requirements of current electronic products on'thinness, lightness, width and strength 'of the wave-absorbing material, and has very high application value.
本发明涉及一种锶铁氧体吸波材料及其制备方法与应用，属于电磁波吸收材料技术领域。本发明的锶铁氧体吸波材料的化学式为：SraBabFezPrxCeyO19，其中0.5≤a≤1.0，0≤b≤0.5，10.4≤z≤11.8，0.1≤x≤0.8，0.1≤y≤0.8；其制备步骤包括：混合原料并加水溶解，加入柠檬酸形成溶液；调节pH，加热搅拌，形成湿凝胶；干燥，自蔓延燃烧，得前驱体粉末；升温煅烧，随炉冷却，得到所述锶铁氧体材料。本发明的锶铁氧体吸波材料可覆盖低、中、高频段，具较宽的吸收频带、吸收厚度薄，且矫顽力、饱和磁化强度高，符合当下电子产品对吸波材料“薄、轻、宽、强”的需求，具很高的应用价值。
Strontium ferrite wave-absorbing material as well as preparation method and application thereof
一种锶铁氧体吸波材料及其制备方法与应用
LI ZUOGUANG (author) / JING XIAODONG (author) / GONG HUAYANG (author) / CHEN ZITAO (author) / SUN YANG (author) / SHANG XIAOYUN (author)
2023-12-05
Patent
Electronic Resource
Chinese
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