Electromagnetic properties and microwave absorption properties of BaTiO3-carbonyl iron composite in S and C bands |
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| Authors: | Yang Rui-gang |
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| Affiliation: | a School of Machinery and Electronics Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China
b Institute of Applied Mechanics and Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, China |
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| Abstract: | BaTiO3 powders are prepared by sol-gel method. The carbonyl iron powder is prepared via thermal decomposition of iron pentacarbonyl. Then BaTiO3-carbonyl iron composite with different mixture ratios was prepared using the as-prepared material. The structure, morphology, and properties of the composites are characterized using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction, scanning electron microscopy (SEM), and a network analyzer. The complex permittivity and reflection loss of the composites have been measured at different microwave frequencies in S- and C-bands employing vector network analyzer model PNA 3629D vector. The effect of the mass ratio of BaTiO3/carbonyl iron on the microwave loss properties of the composites is investigated. A possible microwave absorbing mechanism of BaTiO3-carbonyl iron composite has been proposed. The BaTiO3-carbonyl iron composite can find applications in suppression of electromagnetic interference, and reduction of radar signature. |
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| Keywords: | BaTiO3 Carbonyl iron Electromagnetic property Microwave absorbing |
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