Epoxy composites filled with 30 wt.%-, 60 wt.%- of BaFe_12-xGa_xO₁₉ (x = 0.1–1.2) and with 1 wt.% of multiwall carbon nanotubes were prepared and the filler was aligned via magnetic field action at composites polymerization. The orientation of magnetic filler (BaFe_12-xGa_xO₁₉) in composites was evidenced by scanning electron microscopy and X-ray diffraction methods: the peak intensity of the (008) crystalline plane increases noticeably in composites which were cured under the action of a magnetic field, while (hkl)-peaks decrease. Frequency dependencies (in the range 26–37.5 GHz) of transmission index and of standing wave ratio have been used to study the effect of fillers content, type and their orientation on the electrodynamic properties of the prepared composites. The investigated materials demonstrate maximum effect of alignment of magnetic filler when its content is lower. Namely, six times increase of reflection/absorption indexes ratio R/A at 29 GHz for 30 wt.% BaFe_11.4Ga_0.6O₁₉–L285 was achieved due to the magnetic field action.

制备了环氧树脂复合材料，其中填充了30 wt。％，60 wt。％的BaFe _{12- x} Ga _x O ₁₉（x  = 0.1-1.2）和1 wt。％的多壁碳纳米管，并通过磁性排列了填料复合材料聚合时的场效应。磁性填料的取向（BaFe _{12- x} Ga _x O ₁₉）通过扫描电子显微镜和X射线衍射方法得到证明：在磁场作用下固化的复合物中，（008）晶面的峰强度显着增加，而（hkl）-峰则降低。传输指数和驻波比的频率相关性（在26–37.5 GHz范围内）已用于研究填料含量，类型及其取向对制备的复合材料电动力学性能的影响。所研究的材料表明，当含量较低时，磁性填料的排列效果最大。即，对于30重量％的BaFe _11.4 Ga _0，在29GHz下反射/吸收指数比率R / A增加六倍_。6 O ₁₉–L285由于磁场作用而达到。