Abstract
A heterostructure based on AgVO3 and Ag2CrO4 was synthetized combining of the coprecipitation method, and the microwave-assisted hydrothermal (MAH) method. The synthetized samples were dispersed in an epoxy matrix to obtain a composite with 50 wt.% additive and 50 wt.% epoxy. To investigate the formation of the desired materials, the structural characterizations performed were the X-ray diffraction technique, applied to confirm the phase formation of each material, and the Raman spectroscopy, to investigate the appearance of the interface between the materials of the heterostructure. The rectangular waveguide based on Nicholson-Ross-Weir model was used to measure the electromagnetic properties, samples of each material that compose the heterostructure were prepared to investigate the influence of the creation of the interface between these materials. Based on the electromagnetic properties measured, complex electric permittivity and complex magnetic permeability, electromagnetic simulations of the reflection loss method were performed in the FEKO software, to explore the potential of these materials as radar absorbing materials (RAM), and in order to verify the integrity of the simulations a comparison of a measured reflection loss and a simulated one, with the same conditions, was performed.
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Acknowledgements
The authors acknowledge the following research funding institutions: Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) finance code 001, and the Financiadora de Estudos e Projetos (FINEP/ N° 01.16.0076-00). We are grateful to the Altair for the availability of the FEKO software. And the graduate program in Engenharia e Tecnologia Espaciais/Ciência e Tecnologia de Materiais e Sensores (ETE/CMS -INPE).
Funding
The work was supported by Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, 001, Felipe de Moraes Yamamoto, Financiadora de Estudos e Projetos, 01.16.0076-00, Maurício Ribeiro Baldan
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Yamamoto, F. M. contributed toward conceptualization, methodology, formal analysis, investigation, writing—original draft, and visualization. Fabbro, M. T. and Santos, L. P. S. contributed toward methodology and formal analysis. Lopes, B. K. and Gabas, R. A. L. contributed toward investigation of electromagnetic properties. Baldan, M. R., Santos, L. P. S., and Mineiro, S. L. contributed toward conceptualization, methodology, resources, writing – review & editing, and supervision.
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Yamamoto, F.d., Fabbro, M.T., Lopes, B.H.K. et al. Synthesis and microwave absorption properties of AgVO3/Ag2CrO4 heterostructure in the K-band. J Mater Sci: Mater Electron 35, 897 (2024). https://doi.org/10.1007/s10854-024-12625-1
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DOI: https://doi.org/10.1007/s10854-024-12625-1