FeS_(2)微球的制备及其电磁波吸收特性分析

Preparation and Electromagnetic Wave Absorption Characteristics of FeS_(2) Microspheres

电磁波吸收材料可以解决目前的电磁波污染问题,满足军用设备隐身领域的需求,成为新兴功能材料的研究热点之一。利用低成本溶剂热法制备了尺寸可控的反铁磁性球形FeS_(2)材料。利用XRD、TEM和矢量网络分析仪进行了物相、形貌、尺寸和电磁波吸收性能分析,结果表明该方法可以制备出10~500 nm的球形FeS_(2)材料,可以通过反应条件对其进行尺寸调控,其反射率可达到-28.3 dB,能吸收90%电磁波能量。该项研究拓宽了硫化物的应用领域。

The electromagnetic wave absorbing materials can solve the current electromagnetic wave pollution and the meet the demand of military equipment stealth,therefore it becomes one of the research hotspots of emerging functional materials.A kind of anti-ferromagnetic spherical FeS_(2) material with controllable size is prepared by low-cost solvothermal method.The XRD,TEM and vector network analyzer are used to analyze the phase,morphology,size and electromagnetic wave absorption properties.The results show that the spherical FeS_(2) material with the size of 10-500 nm can be prepared by this method,and its size can be adjusted according to the reaction conditions.Its reflectivity can reach-28.3 d B,and it can absorb 90%electromagnetic wave energy.This research broadens the application of sulfide.