【摘要】：為了研究鐵氧體的電磁性能以及鐵氧體引入量的質量分數(shù)和樣塊厚度對材料性能的影響,以玻璃和陶瓷造粒料為基料,炭黑為發(fā)泡劑,引入鐵氧體,經過球磨、燒結、發(fā)泡、退火工藝后制備出泡沫吸波材料.結果表明:900℃處理對鐵氧體的電磁性能無明顯影響.鐵氧體引入量的質量分數(shù)為5%和10%的吸波性能優(yōu)于鐵氧體為15%和20%引入量的吸波性能;研究初步顯示,該結果是由于鐵氧體的引入影響多孔材料的泡孔結構.鐵氧體引入量的質量分數(shù)為10%時,材料的吸波性能隨著樣塊厚度的增加而增大;樣塊厚度為50 mm時,材料的有效吸收帶寬(反射率小于-10 d B)達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，

本文編號：2512907