Multi functional composite materials based on BaZn2Fe16O27 (BZF) ferrite and antimony-doped tin oxide (the mole ratio of Sb/Sn is 1:5) composite were prepared by co-precipitation method. The structure, morphology, and property of the composites are characterized using X-ray diffraction, scanning electron
microscopy, UV–visible spectroscopy, and a network analyzer. The results showed that nano ATO particles were formed on the surface of flake ferrite. Upon the addition of ATO particles, the complex permittivity of the BZF/ATO composites increases, while the complex permeability of the BZF/ATO composites increases firstly, and then decreases. The reflection loss varies with the change of the BZF/ATO mole ratio, even more the reflection loss peak changes. At 2.7 mm thickness, the reflection loss of the BZF/ATO composites with a mole ratio of 1:1 reaches the maximum value −58.91 dB at 8.08 GHz, and the bandwidth over an absorptivity of 90 % (−10 dB reflection loss) is 9.28 GHz (ranging from 6.32 to 15.6 GHz). The 1.06 μm laser reflection of BZF/ATO composites decreases to a minimum 4.662 %, when the mole ratio of BZF/ATO is 2:1.
Ferrite SnO2 Composite Powder Reflection Loss Sodium Dodecyl Benzene Sulfonate
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This work was financially supported by the National Natural Science Foundation (51202111), Natural Science Foundation of Jiangsu Province (14KJB430019), Natural Science Foundation of Jiangsu Provincial Universities (BK20141000), National Natural Science Foundation of China (51402154), and Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD).