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EExperimental Evaluation of the Effect of Combining a Two-Phase Nano-Composite Containing AL2O3 and NbC in a Surface-Coated Resin Matrix: a Study Based on Dielectric Losses and Radar Reflectance | ||
| Mechanics of Advanced Composite Structures | ||
| دوره 14، شماره 1 - شماره پیاپی 29، تیر 2027، صفحه 135-150 اصل مقاله (1.7 M) | ||
| نوع مقاله: Research Article | ||
| شناسه دیجیتال (DOI): 10.22075/macs.2026.38962.1918 | ||
| نویسندگان | ||
| Mohammad Khakbaz1؛ Mehrdad motavasselolhagh2؛ Masoud Javadi* 3؛ Reza Sarkhosh3 | ||
| 1Department of Aerospace Engineering, Faculty of Graduate Education, Shahid Sattari University of Aeronautical Sciences and Technology, Tehran, Iran | ||
| 2School of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran | ||
| 3Department of Aerospace Engineering, Shahid Sattari University of Aeronautical Sciences and Technology, Tehran, Iran | ||
| تاریخ دریافت: 17 شهریور 1404، تاریخ بازنگری: 30 دی 1404، تاریخ پذیرش: 20 بهمن 1404 | ||
| چکیده | ||
| Electromagnetic wave-absorbing polymer nano-coatings are recognized as important for advanced electromagnetic shielding and wave management applications. In this study, a novel two-phase Al₂O₃/NbC polymer nano-composite within an epoxy resin matrix is introduced, incorporating dual silane surface treatments (APTMS and GPTMS) to enhance interfacial bonding and ensure uniform dispersion of the reinforcing materials. A designed experimental (DOE) plan was implemented before the fabrication process to determine the optimal weight fractions of aluminum oxide (Al₂O₃) and niobium carbide (NbC). Subsequently, chemical bonding, particle surface modification, and matrix homogenization were performed, and the samples were prepared in rectangular molds suitable for electromagnetic rectangular wave guide measurements in the 8.2–12.5 GHz range. The structural and chemical characteristics were analyzed using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The results obtained from electromagnetic absorption and reflection measurements within the 8.2–12.5 GHz frequency range show that sample No.1, with a higher NbC content, demonstrates stronger absorption near 9.5 GHz but reduced performance at higher frequencies. Sample No.2, containing a balanced ratio of Al₂O₃ and NbC, exhibits a more uniform response across the frequency range, while sample No.3, with a higher Al₂O₃ fraction, presents improved impedance matching, enhanced dielectric loss, and absorption exceeding 80% throughout 8.2–12.5 GHz, accompanied by a reflection reduction of approximately 6%. These results indicate that tuning the weight fraction of the two phases allows optimization of broadband absorption performance. Overall, the dual-phase Al₂O₃/NbC system with surface-modified particles can achieve efficient, broadband electromagnetic absorption, offering potential for advanced shielding and wave control applications for aerospace industries. | ||
| کلیدواژهها | ||
| Electromagnetic wave؛ Absorption؛ Dielectric loss؛ Polymer nano-composites؛ Al₂O₃/NbC biphasic system | ||
| مراجع | ||
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[1] Shao, T., Ma, H., Wang, J., Feng, M., Yan, M., Wang, J., Yang, Z., Zhou, Q., Luo, H. and Qu, S., 2020. High-temperature absorbing coatings with excellent performance combine Al2O3 and TiC materials. Journal of the European Ceramic Society, 40(5), pp. 2013-2019. [2] Meng, F., Wang, H., Huang, F., Guo, Y., Wang, Z., Hui, D., and Zhou, Z., 2018. Graphene-based microwave absorbing composites: A review and perspective. Composites Part B: Engineering, 137, pp. 260-277. [3] Kim, J.B., Lee, S.K., and Kim, C.G., 2008. Comparison study on the effect of carbon nano materials for single-layer microwave absorbers in X-band. Composites Science and Technology, 68(14), pp. 2909-2916. [4] Wang, H., Zhu, D., Zhou, W., and Luo, F., 2015. High temperature electromagnetic and microwave absorbing properties of polyimide/multi-walled carbon nanotubes nanocomposites. Chemical Physics Letters, 633, pp. 223-228. [5] Qing, Y., Zhou, W., Luo, F., and Zhu, D., 2017. Thin-thickness FeSiAl/flake graphite-filled Al2O3 ceramics with enhanced microwave absorption. Ceramics International, 43(1), pp. 870-874. [6] Zhou, L., Zhou, W., Su, J., Luo, F., Zhu, D. and Dong, Y., 2012. Plasma-sprayed Al2O3/FeCrAl composite coatings for electromagnetic wave absorption application. Applied Surface Science, 258(7), pp. 2691-2696. [7] Zhao, Y.P., Hu, Y., Yang, Y., Wang, Y.W., Wang, X.Y., Li, W., Shao, Y.X., Sun, W.W., Zhao, H.J. and Ma, Y.D., 2025. Microstructure and properties of plasma-sprayed NbC-Al2O3 composite coatings. Ceramics International, 50(24), pp. 54955-54965. [8] Wang, X.Y., Yang, W., Shao, Y.X., Yang, Y., Yang, Z.L., Wang, Y.W., Cui, Y.H., Ma, Y.D., Sun, W.W. and Li, W., 2021. Effect of nano-Al2O3 on the microstructure and properties of NbB2-NbC composite coatings prepared by plasma spraying. Journal of the American Ceramic Society, 104(12), pp. 6477-6488. [9] Liang, H.E., Yang, Y., Wang, X.L., Yang, Z.L., Li, W., Wang, Y.W. and Shao, Y.X., 2024. TEM characterization and toughening mechanism of in-situ NbB2-NbC-Al2O3 composite coatings prepared by plasma spraying. Materials Characterization, 210, pp. 113783. [10] Mei, H., Yang, D., Yang, W., Yao, L., Yao, Y., Cheng, L. and Zhang, L., 2021. 3D-Printed Impedance Gradient Al2O3 Ceramic with in-Situ Growing Needle-like SiC Nanowires for Electromagnetic Wave Absorption. Ceramics International, 47(22), pp. 31990-31999. [11] Cai, R., Zheng, W., Yang, P., Rao, J., Huang, X., Wang, D., Du, Z., Yao, K., and Zhang, Y., 2022. Microstructure, Electromagnetic Properties, and Microwave Absorption Mechanism of SiO2-MnO-Al2O3 Based Manganese Ore Powder for Electromagnetic Protection. Molecules, 27(12), pp. 3758. [12] Trung, V.Q., Tung, D.N. and Huyen, D.N., 2009. Polypyrrole/Al2O3 nanocomposites: preparation, characterisation and electromagnetic shielding properties. Journal of Experimental Nanoscience, 4(3), pp. 213-219. [13] Wen, L., Zhang, J., Guan, L., Zhu, Y., Zhao, B., Song, L., Zhu, X., and Zhang, R., 2024. Natural bamboo-derived NbC nanowires for efficient electromagnetic wave absorption. Journal of the American Ceramic Society, 107(4), pp. 2453-2465. [14] Delgado, N., Salas, O., Garcés, E. and Magaña, L.F., 2023. Ab-Initio Calculation of the Electrical Conductivity, Optical Absorption, and Reflectivity of the 2D Materials SnC and NbC. Crystals, 13(4), pp. 682. [15] Wei, B., Wang, Y., Zhao, Y., Wang, D., Song, G., Fu, Y. and Zhou, Y., 2018. Effect of NbC content on microstructure and mechanical properties of W-NbC composites. International Journal of Refractory Metals and Hard Materials, 70, pp. 66-76. [16] Fang, L., Yan, H., Yao, Y., Zhang, P., Gao, Q., and Qin, Y., 2018. Reactive Fabrication and Effect of NbC on Microstructure and Tribological Properties of CrS Co-Based Self-Lubricating Coatings by Laser Cladding. Materials, 11(1), pp. 44. [17] Song, X., Li, Y., Zhang, H., Wang, Q., and Chen, J., 2024. Mechanical Properties of a Honeycomb Structure Dispersed with 3D-Printed Fe₃O₄ Nanomaterials. ACS Omega, 9(12), pp.14287–14296. [18] Xu, L., Wang, W., Liu, Y. and Liang, D., 2022. Nanocellulose-Linked MXene/Polyaniline Aerogel Films for Flexible Supercapacitors. Gels, 8, pp.798 [19] Zhao, H., Ma, X., Li, C., Song, X., Fu, Y., and Gao, B., 2025. Study on the Electromagnetic Absorption Optimization Design of Honeycomb Structures with Ti3C2Tx/Fe3O4/UV Resin. Journal of Alloys and Compounds, pp.182180. [20] Guo, S., Guo, Y., Wang, T., Zhang, T., Zhao, D., Fan, F., Yang, X., Song, X., and Fu, Y., 2025. Study on the optimization of electromagnetic absorption and mechanical properties of 3D printed γ-Fe2O3/UV Resin-Based honeycomb structures. ACS Applied Electronic Materials, 7(2), pp.766-778. [21] Li, C. and Song, X., 2023. Surface size-and structure-optimized design of two-dimensional MXene nanosheets for electromagnetic wave absorption. ACS Applied Nano Materials, 6(13), pp.12050-12062. [22] Yang, Z., Sun, M., Li, J., Zhou, Q., Ren, W., and Jia, Y., 2021. Microwave-absorbing performance of a radar-absorbing structure composed of K0. 5Na0. 5NbO3/ZrO2/Al2O3 heterojunction. Ceramics International, 47(22), pp.31811-31816. [23] Gogoi, D., Korde, R., Chauhan, V.S., Patra, M.K., Roy, D., Das, M.R., and Ghosh, N.N., 2022. CoFe2O4 nanoparticles grown within porous Al2O3 and immobilized on graphene nanosheets: a hierarchical nanocomposite for broadband microwave absorption. ACS Omega, 7(32), pp.28624-28635. [24] Ye, X., Zhang, Y., Xu, J., Li, S., Ma, X., Cao, L., Zhang, J., Zhang, X. and Zheng, K., 2025. Synergistic enhancement of radar wave absorption in SiC/Al2O3 composites via structural tuning, composition optimization, and unit design. Materials Today Physics, 51, pp.101662. [25] Rezaei Qazviniha, M. and Piri, F., 2023. Synthesis and characterization of Al2O3/novolac/fiberglass nanocomposite: Modification of thermal stability and thermal insulation properties. Mechanics of Advanced Composite Structures, 10(1), pp.21-28. [26] Ye, X., Zhang, Y., Xu, J., Li, S., Ma, X., Cao, L., Zhang, J., Zhang, X. and Zheng, K., 2025. Synergistic enhancement of radar wave absorption in SiC/Al2O3 composites via structural tuning, composition optimization, and unit design. Materials Today Physics, 51, pp.101662. [27] Fang, X., Wu, Q., Gu, Z., Ma, H., Yin, S., Tong, R., Liu, L., and Zuo, R., 2025. Compositionally tailoring dielectric properties of MCMB-SiC/Al2O3 porous composites for enhanced microwave absorption. Materials Today Communications, pp.113659. [28] Paul, A., Kt, A., George, P.P., and George, M., 2025. Biowax-derived epoxy composites with rGO–NZF–Al₂O₃: a green solution for enhanced EMI shielding and structural performance. Composite Interfaces, pp.1-21. [29] Rashidi, A., Kiyani, G. and Nosrati, R., 2021. A review of the mechanism and performance of electromagnetic wave absorbers made of polymer nanocomposites. Journal of the Iranian Electrical and Electronic Engineering Association, 18(4), pp. 1-15. [30] Chen, D., Wang, G.S., He, S., Liu, J., Guo, L., and Cao, M.S., 2013. Controllable Fabrication of Mono-Dispersed RGO–Hematite Nanocomposite and Their Enhanced Wave Absorption Properties. Journal of Materials Chemistry A, 1(19), pp. 5996-6003. [31] Huang, B., Yue, J., Wei, Y., Huang, X., Tang, X., and Du, Z., 2019. Enhanced Microwave Absorption Properties of Carbon Nanofibers Functionalized by FeCo Coatings. Applied Surface Science, 483, pp. 98-105. [32] Gao, S., Zhang, Y., Xing, H., and Li, H., 2020. Controlled reduction synthesis of yolk-shell magnetic@ void@ C for electromagnetic wave absorption. Chemical Engineering Journal, 387, pp.124149. [33] Markel, V.A., 2016. Introduction to the Maxwell Garnett approximation: tutorial. Journal of the Optical Society of America A, 33(7), pp.1244-1256. [34] Sarkhosh, R., Kazemi Nasrabadi, M., and ParsaFar, R., 2024. Study of the effect of fumed silica on the mechanical, electrical, and magnetic properties of epoxy/fumed silica composite. Iranian Journal of Manufacturing Engineering, 11(2), pp.37-57. | ||
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