Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8153242 | Journal of Magnetism and Magnetic Materials | 2018 | 17 Pages |
Abstract
In this paper, we introduced attapulgite (ATP) into the system of ferrite composites for the first time. By sol-gel self-propagating combustion method, attapulgite/barium ferrite (ATP/BaFe12O19) was prepared, and then ternary composites of attapulgite/barium ferrite/polyaniline (ATP/BaFe12O19/PANI) were obtained by in-situ oxidative polymerization of aniline on ATP/BaFe12O19 mixture. The phase composition, morphology and electromagnetic properties of the as-prepared composites were characterized by X-ray diffraction (XRD), Transmission election microscope (TEM), Fourier transform infrared (FTIR), vibrating sample magnetometer (VSM) and vector network analyzer (VNA). We found that the ATP/BaFe12O19/PANI composites at a thickness of 2â¯mm have the minimum reflection loss of⯠â11.89â¯dB at 11.28â¯GHz, besides the effective absorption bandwidth (less than â5â¯dB) reached 6.39â¯GHz (from 8.42â¯GHz to 14.81â¯GHz).
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Dezhong Bai, Huixia Feng, Nali Chen, Lin Tan, Jianhui Qiu,