基于铁氧体制备的泡沫吸波材料性能
发布时间：2019-07-10 21:34
【摘要】：为了研究铁氧体的电磁性能以及铁氧体引入量的质量分数和样块厚度对材料性能的影响,以玻璃和陶瓷造粒料为基料,炭黑为发泡剂,引入铁氧体,经过球磨、烧结、发泡、退火工艺后制备出泡沫吸波材料.结果表明:900℃处理对铁氧体的电磁性能无明显影响.铁氧体引入量的质量分数为5%和10%的吸波性能优于铁氧体为15%和20%引入量的吸波性能;研究初步显示,该结果是由于铁氧体的引入影响多孔材料的泡孔结构.铁氧体引入量的质量分数为10%时,材料的吸波性能随着样块厚度的增加而增大;样块厚度为50 mm时,材料的有效吸收带宽(反射率小于-10 d B)达18 GHz,反射率低至-23.4 d B.
[Abstract]:In order to study the electromagnetic properties of Ferrite and the effects of the mass fraction of Ferrite introduction and the thickness of sample block on the properties of the material, the foam absorbing material was prepared by using glass and ceramic granulator as base material and carbon black as foaming agent. After ball milling, sintering, foaming and annealing, the foam absorbing material was prepared by ball milling, sintering, foaming and annealing. The results show that 900 鈩，
本文编号：2512907
[Abstract]:In order to study the electromagnetic properties of Ferrite and the effects of the mass fraction of Ferrite introduction and the thickness of sample block on the properties of the material, the foam absorbing material was prepared by using glass and ceramic granulator as base material and carbon black as foaming agent. After ball milling, sintering, foaming and annealing, the foam absorbing material was prepared by ball milling, sintering, foaming and annealing. The results show that 900 鈩，
本文编号：2512907
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