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Journal articles on the topic 'Electromagnetic wave absorbing properties'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Zheng, Wei, Wenxian Ye, Pingan Yang, et al. "Recent Progress in Iron-Based Microwave Absorbing Composites: A Review and Prospective." Molecules 27, no. 13 (2022): 4117. http://dx.doi.org/10.3390/molecules27134117.

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With the rapid development of communication technology in civil and military fields, the problem of electromagnetic radiation pollution caused by the electromagnetic wave becomes particularly prominent and brings great harm. It is urgent to explore efficient electromagnetic wave absorption materials to solve the problem of electromagnetic radiation pollution. Therefore, various absorbing materials have developed rapidly. Among them, iron (Fe) magnetic absorbent particle material with superior magnetic properties, high Snoek’s cut-off frequency, saturation magnetization and Curie temperature, w

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2

Tian, Kun, Sheng Yin Zhou, Jiang Rong Xiao, Ru Guang Li, and Peng Yao. "Design and Preparation of Cement-Based Composite with Electromagnetic Protection." Materials Science Forum 743-744 (January 2013): 382–88. http://dx.doi.org/10.4028/www.scientific.net/msf.743-744.382.

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Using space electromagnetic wave propagation principle, environment requirements of building protective engineering structure and performance characteristics of cement-based composites, a design idea of cement-based composite with electromagnetic protection is presented in the present study. This design idea was tested and verified. According to the proposed new designed method, by optimizing and selecting the wave-transparent aggregate and absorbing agent material, the absorbing composite materials of cement-based electromagnetic protection, electromagnetic wave absorbent, energy saving and e

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3

Zhang, Zheng Quan, Li Ge Wang, and En Ze Wang. "Microwave Absorbing Properties of Radar Absorbing Structure Composites Filling with Carbon Nanotubes." Advanced Materials Research 328-330 (September 2011): 1109–12. http://dx.doi.org/10.4028/www.scientific.net/amr.328-330.1109.

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Radar absorbing structures (RAS) can’t only load bearing but also absorb electromagnetic wave energy by inducing dielectric loss and minimizing reflected electromagnetic waves. Therefore, the development of the RAS haves become important to reduce RCS of the object. These composites possess excellent specific stiffness and strength. The electromagnetic wave properties of RAS can be effectively tailored by controlling the content of the lossy materials. Radar absorbing structures composed of glass fibers, carbon fibers and epoxy resin filling with carbon nanotubes (CNTs), was designed and prepa

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4

Yan, Leilei, Wei Jiang, Chun Zhang, et al. "Enhancement by Metallic Tube Filling of the Mechanical Properties of Electromagnetic Wave Absorbent Polymethacrylimide Foam." Polymers 11, no. 2 (2019): 372. http://dx.doi.org/10.3390/polym11020372.

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By the addition of a carbon-based electromagnetic absorbing agent during the foaming process, a novel electromagnetic absorbent polymethacrylimide (PMI) foam was obtained. The proposed foam exhibits excellent electromagnetic wave-absorbing properties, with absorptivity exceeding 85% at a large frequency range of 4.9–18 GHz. However, its poor mechanical properties would limit its application in load-carrying structures. In the present study, a novel enhancement approach is proposed by inserting metallic tubes into pre-perforated holes of PMI foam blocks. The mechanical properties of the tube-en

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5

Xuan, Xiong, Hai Yan Zhang, Guo Xun Zeng, Ng Kung Bo, and Chi Hou Chan. "Millimeter Wave Absorbing Electromagnetic Properties of ZnO Whisker/Silicon Resin Coating Material." Materials Science Forum 852 (April 2016): 1055–59. http://dx.doi.org/10.4028/www.scientific.net/msf.852.1055.

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Wave-absorbing coating samples are fabricated with ZnO whisker, the absorbent and silicon resin coating as the binder.The influences of the content of ZnO whisker in the absorbing coating and the thickness of the coating on millimeter wave absorbing property are analyzed.With the increasing of the thickness, the absorbing performance of the sample is enhanced significantly , the results show that with a ZnO whisker mass of 50% and coating thickness of 2 mm, excellent absorption (R<-10dB) is observed in the wave band from 66 to 78 GHz (with a bandwidth of 12GHz) . When the ZnO whisker mass i

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6

Lyu, Li-Hua, Wen-Di Liu, and Bao-Zhong Sun. "Electromagnetic Wave-Absorbing and Bending Properties of Three-Dimensional Honeycomb Woven Composites." Polymers 13, no. 9 (2021): 1485. http://dx.doi.org/10.3390/polym13091485.

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To avoid the delamination of the traditional three-dimensional (3-D) honeycomb electromagnetic (EM) absorbing composites and improving the defects of low mechanical properties, the 3-D honeycomb woven fabrics were woven on the ordinary loom by practical design. The fabrication of 3-D honeycomb woven EM absorbing composites was based on carbon black/carbonyl iron powder/basalt fiber/carbon fiber/epoxy resin (CB/CIP/BF/CF/EP) by the vacuum-assisted resin transfer molding (VARTM) process. A CB/CIP composite absorbent study showed that CB/CIP composite absorbent belongs to a magnetic loss type abs

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7

Cao, Lanlan, Yong Zhang, Zhenxing Qiu, and Xuan Wang. "Research Progress of MXene Composites In Electromagetic Wave Absorption." Journal of Physics: Conference Series 2706, no. 1 (2024): 012012. http://dx.doi.org/10.1088/1742-6596/2706/1/012012.

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Abstract The issue of electromagnetic wave pollution is increasingly severe due to the rapid advancement of communication technology. Advanced electromagnetic wave absorbing materials have become an important research field. The excellent microwave absorption capabilities of the MXene composite can be attributed to its unique two-dimensional structure, abundant adjustable surfaces with functional groups, significant specific surface area, and high electrical conductivity. In this paper, the electromagnetic properties, electromagnetic wave absorption advantages and electromagnetic wave absorpti

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8

Yu, Zhang. "Research on Absorbing Properties of New Porous Metals Materials with Light Weight." Key Engineering Materials 815 (August 2019): 42–47. http://dx.doi.org/10.4028/www.scientific.net/kem.815.42.

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The development of electronic science technology makes electromag-netic radiation problems increasingly severe. High-performance absorbing and shielding electromagnetic wave materials with light weight are researched and developed as one of effectiveness methods to restrain electromagnetic radiation and prevent information leakage. The absorbing properties of aluminium foams coating absorbing paint were studied and tested by making use of RCS in “the reflectivity testing measurement of radar absorbing material” of GJB 2038-94 in this work. The effect of absorbent species and metal base structu

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9

Dai, Yinsuo, Jianhua Wu, Derong Wang, Rui Li, Chunhua Lu, and Zhongzi Xu. "Electromagnetic Wave-Absorbing Properties of Steel Slag." Journal of Materials Engineering and Performance 28, no. 1 (2018): 535–42. http://dx.doi.org/10.1007/s11665-018-3831-7.

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10

Zhao, Xu, Wanjun Hao, Feng Zhao, and Nan He. "Preparation and properties of magnesium oxysulfide inorganic microwave absorbing coating." Journal of Physics: Conference Series 2029, no. 1 (2021): 012121. http://dx.doi.org/10.1088/1742-6596/2029/1/012121.

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Abstract This paper mainly introduces the harm of electromagnetic radiation pollution, and based on the electromagnetic wave absorption theory, the microwave absorption performance of single-layer microwave absorbing coating with magnesium oxysulfide cementitious material as matrix material and iron tailings as microwave absorbing agent is studied. The experimental results show that the absorbing effect of the absorbing coating mixed with 0.5 proportion iron tailings is the best, and the absorbing performance increases obviously with the increase of thickness. The maximum absorption value of 3

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11

Huang, Yun-Yun, and Jian Wu. "Preparation and Characterization of Graphene Oxide/Polyaniline/Carbonyl Iron Nanocomposites." Materials 15, no. 2 (2022): 484. http://dx.doi.org/10.3390/ma15020484.

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Nano coatings for anti-corrosion and electromagnetic wave absorbing can simultaneously implement the functions of assimilating electromagnetic waves and reducing the corrosion of materials caused by corrosive environments, such as seawater. In this work, a composite material for both electromagnetic wave absorption and anti-corrosion was prepared by an in-situ chemical oxidation and surface coating method using carbonyl iron powder (CIP), graphene oxide (GO) and aniline (AN). The synthesized composite material was characterized by scanning electron microscopy (SEM), infrared spectroscopy (FT-I

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12

Liu, Yuanjun, Yi Wang, Xiang Wu, Lulu Zhang, and Jiarong Niu. "Influence of Wave-Absorbing Functional Particles on the Electromagnetic Properties and Mechanical Properties of Coated Composites for Nickel Powders." Fibres and Textiles in Eastern Europe 28, no. 5(143) (2020): 75–81. http://dx.doi.org/10.5604/01.3001.0014.2389.

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In this subject, a single-layer coated composite for nickel powders was prepared using PU2540 polyurethane as the matrix, nickel powder as the wave-absorbing functional particle, and coating technology on plain cotton fabric. The influence of wave-absorbing functional particles on the dielectric, shielding effectiveness and mechanical properties of the single-layer coated composite for nickel powders was mainly analysed and compared. Results showed that the real and imaginary parts and loss tangent of the dielectric constant were all the largest when the iron powder was mixed with the nickel p

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13

Yao, Wenbin, Huawei Zhang, Xinghai Zhou, Yuan Gao, Liwei Wu, and Lihua Lyu. "Electromagnetic wave absorbing and bending properties of 3D gradient structured woven composites: experiment and simulation." Journal of Industrial Textiles 53 (January 2023): 152808372311591. http://dx.doi.org/10.1177/15280837231159136.

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In order to prepare 3D structural composites with electromagnetic wave absorption and load-bearing, 3D gradient structured woven fabrics were woven with basalt fiber filament yarn and carbon fiber filament yarn as raw materials on a common loom with rational design. After that, the three-dimensional gradient structured woven fabric was used as the reinforcing material, epoxy resin was used as the matrix, and carbonyl iron powder (CIP) and carbon black (CB), the electromagnetic wave absorbers, were added. In this paper, a vacuum-assisted resin transfer molding method was used to fabricate compo

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14

Wang, Wei, and Xiaodong Wang. "Effect of annealing treatment on electromagnetic parameters and wave-absorbing properties of Fe-based soft magnetic particles." Journal of Physics: Conference Series 2819, no. 1 (2024): 012054. http://dx.doi.org/10.1088/1742-6596/2819/1/012054.

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Abstract Fe-based soft magnetic particles have excellent soft magnetic properties but have limitations in practical applications. In order to obtain better wave-absorbing properties, Fe-based soft magnetic particles have been modified to meet the demand for their properties. The wave-absorbing properties of Fe-based soft magnetic amorphous powders are improved by annealing them, because annealing not only increases the dielectric constant and permeability of the material but also improves the soft magnetic properties of the material and increases the impedance matching of electromagnetic waves

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15

Liu, Ye, Shun Kang Pan, Pei Hao Lin, Xing Liu, and Li Chun Cheng. "Microwave Absorbing Properties of MnAlFe Magnetic Powder." Materials Science Forum 852 (April 2016): 3–8. http://dx.doi.org/10.4028/www.scientific.net/msf.852.3.

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MnAlFe alloy was prepared by the combined use of smelting, high-energy ball milling and tempering heat treatment process. The phase composition and microwave absorbing properties of MnAlFe alloy were investigated by X-ray diffractometer(XRD) and vector network analyzer. The results show that the powders consist of Al8Mn5 single phase with different Fe content; the dielectric loss and the magnetic loss increases with the addition of Fe, the resonant frequency and absorption peak of ε″ and μ″ moves towardslower frequency region simultaneously. The (Al8Mn5)99Fe exhibits preferably comprehensive m

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16

Yang, Xin, Tie Shu, Xianfeng Yang, et al. "MOFs-Derived Three-Phase Microspheres: Morphology Preservation and Electromagnetic Wave Absorption." Molecules 27, no. 15 (2022): 4773. http://dx.doi.org/10.3390/molecules27154773.

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Reasonable structural design and composition control are the dominant factors for tuning the electromagnetic absorbing properties of materials. In this paper, microspheres composed of NiO, Ni, and Co3O4 nanoparticles (NCMO) were successfully synthesized using a mild oxidation method. Benefiting from the multi-component composition and a unique microstructure, the RLmin of CNMO can reach −46.8 dB at 17 GHz, with an effective absorption bandwidth of 4.1 GHz (13.9–18 GHz). The absorbing properties and the absorbing mechanism analysis showed that the microsphere-structured NCMO composed of multi-c

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17

Tian, Hongyan, Jianbing Sang, Rihan Ao, and Shujun Hou. "Electromagnetic absorption and thermoelastic analysis of a functionally graded wave absorber." Multidiscipline Modeling in Materials and Structures 12, no. 3 (2016): 534–42. http://dx.doi.org/10.1108/mmms-11-2015-0068.

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Purpose As a good absorbing material candidate, a functionally graded wave absorber can be tailored to satisfy the impedance match principle by gradually changing material property. The paper aims to discuss these issues. Design/methodology/approach The electromagnetic wave absorption properties are discussed. An analysis model is proposed to provide an insight into its mechanical characteristics during wave absorption. Considering the energy-converting and thermal deformation properties, the thermoelastic behaviors of an absorber are analyzed by numerical method. The effects of material and g

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18

Sun, Ye, Yue Fang Zhang, and Wan Jun Hao. "Electromagnetic Wave Absorption Cement Based on Composited Absorbing Agent." Advanced Materials Research 1035 (October 2014): 520–23. http://dx.doi.org/10.4028/www.scientific.net/amr.1035.520.

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To solve more and more serious electromagnetic radiations, electromagnetic wave absorption cement were prepared by introducing carbon black and glass fiber as composited absorbing reagent, wich can be useful in building anechoic chamber and other electromagnetic radiation protection to buildings. The results showed that the absorption properties were improved compared with single absorbing agent such as carbon or glass fiber. the lowest reflection loss of-11.3dB was obtained at 18 GHz of 5wt.% carbon black and 9wt.% glass fiber filled cement with thickness of 20mm. The increase of thickness se

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19

Yang, R. B., K. Y. Juan, Chien Yie Tsay, W. F. Liang, and Chung Kwei Lin. "Electromagnetic Characteristics of Iron-Based Microwave Absorbing Materials." Key Engineering Materials 479 (April 2011): 106–11. http://dx.doi.org/10.4028/www.scientific.net/kem.479.106.

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Nowadays human are exposed to an environment filling with electromagnetic waves over a wide frequency range. The electromagnetic properties of microwave absorbing materials plays an important role in the performance of civilian electromagnetic interference (EMI) shielding at low frequency range and military stealth technology at high frequency one. The electromagnetic properties include complex permittivity and permeability and its combination determines the electromagnetic wave absorption ability of a material. Complex permittivity and permeability can be measured by three different methods,

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20

Gao, Chunfu, Xinsheng He, Fengchao Ye, Shuxin Wang, and Guang Zhang. "Electromagnetic Wave Absorption and Mechanical Properties of CNTs@GN@Fe3O4/PU Multilayer Composite Foam." Materials 14, no. 23 (2021): 7244. http://dx.doi.org/10.3390/ma14237244.

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With the development of intelligent communications and stealth technology in the military field, electromagnetic wave pollution cannot be ignored, and absorbing materials have entered people’s field of vision and gradually become a research hotspot. The ideal absorbing material should have the characteristics of “strong, wide, thin, and light”, but a single absorbing material often cannot meet the above conditions. At present, absorbing metal powder combined with two-dimensional carbon nanomaterials (such as carbon nanotubes, graphene, etc.) has became a trend. This article focus on a three-la

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21

Yin, Jianjun, Wensuo Ma, Zuobin Gao, Xianqing Lei, and Chenhui Jia. "A Review of Electromagnetic Shielding Fabric, Wave-Absorbing Fabric and Wave-Transparent Fabric." Polymers 14, no. 3 (2022): 377. http://dx.doi.org/10.3390/polym14030377.

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As the basic materials with specific properties, fabrics have been widely applied in electromagnetic (EM) wave protection and control due to their characteristics of low density, excellent mechanical properties as well as designability. According to the different mechanisms and application scenarios on EM waves, fabrics can be divided into three types: EM shielding fabric, wave-absorbing fabric and wave-transparent fabric, which have been summarized and prospected from the aspects of mechanisms and research status, and it is believed that the current research on EM wave fabrics are imperfect i

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22

Lü, Xu Liang, Chao Wu, and Zhao Yang Zeng. "Comparison Analysis of Absorption Properties for Microwave Absorbent." Key Engineering Materials 512-515 (June 2012): 1132–35. http://dx.doi.org/10.4028/www.scientific.net/kem.512-515.1132.

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In order to compare the absorbing properties of different microwave-absorbing agents and their mixture, this paper has selected two typical microwave-absorbing agents which respectively are carbon fiber resistance microwave-absorbing agents and ferrite magnetism microwave-absorbing agents, and took them as monolayer absorbing materials. Then used MG formula to calculate the effective electromagnetic parameter of their mixture under different proportion at X band, and finally analyzed their absorbing properties separately. Then through contrasting the impedance matching characteristic and atten

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23

Choi, Hyung Do, Hwan Woo Shim, Kwang Yun Cho, Hyuck Jae Lee, Chan Sik Park, and Ho Gyu Yoon. "Electromagnetic and electromagnetic wave-absorbing properties of the SrTiO3-Epoxy composite." Journal of Applied Polymer Science 72, no. 1 (1999): 75–83. http://dx.doi.org/10.1002/(sici)1097-4628(19990404)72:1<75::aid-app8>3.0.co;2-t.

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24

Wang, Run, Yafeng Han, Jiping Lu, et al. "Design and performance of trapezoidal honeycomb absorbing structure based on FDM." Journal of Physics: Conference Series 2951, no. 1 (2025): 012006. https://doi.org/10.1088/1742-6596/2951/1/012006.

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Abstract The increasing prevalence of electronic devices and the rapid evolution of communication technologies underscore the critical need for effective management of electromagnetic interference and assurance of electromagnetic compatibility. This study presents an innovative trapezoidal honeycomb absorber structure, optimized to enhance the absorption of electromagnetic waves across a broad spectrum. By leveraging Fused Deposition Modeling (FDM) 3D printing technology, we have fabricated a short-cut carbon fiber composite material that exhibits superior electromagnetic and mechanical proper

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25

Wu, Chao, Zhao Yang Zeng, Xu Liang Lü, Q. Jia, and H. C. Tang. "Analysis of Absorption Properties for Magnetism-Absorbing Agents Mixed with Semiconductor Particulate." Key Engineering Materials 512-515 (June 2012): 1128–31. http://dx.doi.org/10.4028/www.scientific.net/kem.512-515.1128.

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In order to improve absorbing properties of material effectively, enhance the ability of attenuating electromagnetic wave, and at the same time, make the impedance matching with air to the most extent, this paper mixed ferrite magnetism microwave-absorbing agents with semiconductor particulates. We got the effective EM parameter of the mixture using effective EM parameter model, and then analyzed absorption properties. As the result, it figured out the cubage proportion and conductance of semiconductor particulates based on the resistance matching principle. Through calculating the reflection

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26

Lihua, Zou, Shen Jiahui, Xu Zhenzhen, Ruan Fangtao, Qiu Yiping, and Liu Zhi. "Electromagnetic Wave Absorbing Properties of Cotton Fabric with Carbon Nanotubes Coating." Fibres and Textiles in Eastern Europe 28, no. 5(143) (2020): 82–90. http://dx.doi.org/10.5604/01.3001.0014.2390.

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In order to endow cotton fabric with the electromagnetic shielding property while preserving comfort and softness, carbon nanotubes (CNTs) were coated onto NaOH pretreated fabrics via a binder-free dip-coating approach. Scanning electron microscopy (SEM) and Infrared spectroscopy were utilised to investigate the surface morphology and modification of the CNT functionalised fabrics. The effects of the number of dip-coatings, the concentration of carbon nanotubes, and the impregnation temperature on electrical conductivity, electromagnetic (EM) shielding effectiveness (SE), and wave absorbing ef

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27

Sun, Hui Min, Zhao Zhan Gu, and Ran Ran Yang. "Study on Absorbing Properties of Honeycomb Absorbing Materials." Advanced Materials Research 815 (October 2013): 645–49. http://dx.doi.org/10.4028/www.scientific.net/amr.815.645.

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Honeycomb absorbing materials were measured using the method of free space in this paper. The reflectance of honeycomb absorbing materials was calculated and simulated, and it was verified based on the measured results. It was demonstrated that this test method was feasible. Through studying on absorbing properties of honeycomb, the results have showed that the radar absorbing properties of honeycomb are related to electromagnetic parameters, as well as thickness of the dip-coatings. With the increase of thickness of the dipping layer, the radar absorbing capability of high frequency and low f

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28

Yang, Shuang, Xianxian Sun, Shasha Wang, et al. "Electromagnetic wave absorbing properties of coconut shell-derived nanocomposite." Carbon 196 (August 2022): 354–64. http://dx.doi.org/10.1016/j.carbon.2022.05.016.

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Sivak, A. S., S. V. Trigorlyi, S. G. Kalganova, et al. "Study of dielectric properties of high-energy radio-absorbing composites." Industrial laboratory. Diagnostics of materials 91, no. 4 (2025): 28–35. https://doi.org/10.26896/1028-6861-2025-91-4-28-35.

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The solution of problems in the field of microwave electrotechnology related to mathematical modelling, development of installations or technology of electromagnetic field influence on the processing object requires knowledge of dielectric properties of high-energy radio-absorbing composites. The paper presents the results of computational and experimental study of dielectric properties of composite materials based on epoxy matrix with different absorbing fillers. Dielectric properties of materials were determined using the waveguide method based on the determination of the complex reflection

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Yang, Zenghui, Haihua Wu, Renjing Zhang, et al. "Effect of Graphene/Spherical Graphite Ratio on the Properties of PLA/TPU Composites." Polymers 14, no. 13 (2022): 2538. http://dx.doi.org/10.3390/polym14132538.

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Wave-absorbing materials are developing in the direction of “light weight, wide frequency band, thin layer and high strength”, and it is difficult to achieve the synergy between wave-absorbing performance and mechanical properties when graphene absorbent is compounded with a single resin matrix. In this paper, based on the preparation of a new composite absorbing wire with a graphene (GR)/spherical graphite (SG) double absorbent and polylactic acid (PLA)/thermoplastic polyurethane (TPU) double matrix, we proposed a new method to prepare samples for testing the electromagnetic parameters and te

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31

Guo, Rong Wang, Juan Zhang, Zhuo Fu, and Bo Yu Liu. "Analysis of Double Hybrid Medium Absorbing Microwave Performance." Advanced Materials Research 926-930 (May 2014): 48–51. http://dx.doi.org/10.4028/www.scientific.net/amr.926-930.48.

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Simple dielectric or magnetic absorbing material medium's capacity to absorb the electromagnetic wave is limited so that it can't very well meet technical requirements. At the historic moment ,absorbing material mixed dielectric and magnetic medium development arises. There is a very complicated relationship between effective electromagnetic parameters of a mixture of dielectric and magnetic medium and its components .The ratio of different not only lead to different effective electromagnetic parameters but also have different reflection and transmission of electromagnetic parameters. Accordin

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Zhu, Zetao, Xin Sun, Hairong Xue, et al. "Graphene–carbonyl iron cross-linked composites with excellent electromagnetic wave absorption properties." J. Mater. Chem. C 2, no. 32 (2014): 6582–91. http://dx.doi.org/10.1039/c4tc00757c.

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Lu, Yi, Pingan Yang, Yanhong Li, et al. "A Facile Synthesis of NiFe-Layered Double Hydroxide and Mixed Metal Oxide with Excellent Microwave Absorption Properties." Molecules 26, no. 16 (2021): 5046. http://dx.doi.org/10.3390/molecules26165046.

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Microwave-absorbing materials have attracted increased research interest in recent years because of their core roles in the fields of electromagnetic (EM) pollution precaution and information security. In this paper, microwave-absorbing material NiFe-layered double hydroxide (NiFe-LDH) was synthesized by a simple co-precipitation method and calcined for the fabrication of NiFe-mixed metal oxide (NiFe-MMO). The phase structure and micromorphology of the NiFe-LDH and NiFe-MMO were analyzed, and their microwave-absorbing properties were investigated with a vector network analyzer in 2–18 GHz. Bot

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Zhang, Haiyang, Xinli Ye, Jianqing Xu, et al. "Effects of Heat Treatment on the Electromagnetic Wave Absorption Characteristics of Resorcinol Formaldehyde Silicon Dioxide Ceramic Particles." Materials 17, no. 10 (2024): 2376. http://dx.doi.org/10.3390/ma17102376.

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In light of the pressing environmental and health issues stemming from electromagnetic pollution, advanced electromagnetic wave absorbing materials are urgently sought to solve these problems. The present study delved into the fabrication of the resorcinol formaldehyde (RF)/SiO2 ceramic particles using the sol–gel route. From SEM images and XRD and XPS analysis, it can be seen that the RF/SiO2 ceramic particles are successfully generated after heat treatment at 1500 °C. At room temperature, the sample treated at 1500 °C exhibited a minimum reflection loss of −47.6 dB in the range of 2–18 GHz w

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Zaki, Batool Abdul Rasool, Farhan Lafta Rashid, and Mohammad N. Al-Baiati. "Glycerol /Phthalic Anhydride Novel Nano Composite for Microwave Absorbing Applications." Revue des composites et des matériaux avancés 32, no. 3 (2022): 133–39. http://dx.doi.org/10.18280/rcma.320304.

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High-efficiency radar wave absorbing material was prepared utilizing nanoparticles poly (glycerol /phthalic anhydride), and the effect of using these nanocomposites with thermal paint on the properties of electromagnetic absorbing was analyzed and investigated. Results show that when the percentage of nano polymers is increased from 1% to 3%, with the presence of 2.5% of iron oxide, the reflectivity loss value rises dramatically. For the reflectivity up to 27.2dB at a frequency of 8.3 GH and a bandwidth of (8.1-8.2GH), there is a clear attenuation of the radar waves, which is confined within a

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Zhang, Tianyi. "Recent research progress and prospect of graphene-based microwave absorbing materials." Advances in Computer and Engineering Technology Research 1, no. 2 (2024): 100. http://dx.doi.org/10.61935/acetr.2.1.2024.p100.

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With the increasing use of electronic devices, electromagnetic wave pollution has become a hot topic of concern and discussion, and microwave absorption materials play an important role in civil and defense military fields. Therefore, the development of electromagnetic wave absorption materials with low density, thin thickness, wide effective bandwidth, and strong wave absorption performance has become the focus and goal of researchers. Graphene shows a unique two-dimensional structure, lightweight, large specific surface area, high electrical conductivity, and high thermal conductivity, which

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Ma, Chao, Zihao Wu, Shuai Xie, et al. "Optimization with a Genetic Algorithm for Multilayer Electromagnetic Wave Absorption Cement Mortar Filled with Expended Perlite." Journal of Material Science and Technology Research 10 (May 4, 2023): 27–38. http://dx.doi.org/10.31875/2410-4701.2023.10.04.

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Abstract: Due to the complexity of the design of multilayer electromagnetic (EM) wave absorbing materials, it is difficult to establish the relationship between material parameters (type and filling ratios) and EM properties using traditional trial and error methods. Based on the measured EM parameters within a few materials and Boltzmann mixing theory, a database of EM parameters was thereafter built up. In this study, the genetic algorithm (GA) was used to design the multilayer wave-absorbing cement mortar. In order to verify this method, a multilayer mortar was fabricated and measured. The

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Guo, Mengyao, Ming Lin, Jingwei Xu, Yongjiao Pan, Chen Ma, and Guohua Chen. "Reduced Graphene Oxide Modified Nitrogen-Doped Chitosan Carbon Fiber with Excellent Electromagnetic Wave Absorbing Performance." Nanomaterials 14, no. 7 (2024): 587. http://dx.doi.org/10.3390/nano14070587.

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Lightweight and low-cost one-dimensional carbon materials, especially biomass carbon fibers with multiple porous structures, have received wide attention in the field of electromagnetic wave absorption. In this paper, graphene-coated N-doped porous carbon nanofibers (PCNF) with excellent wave absorption properties were successfully synthesized via electrostatic spinning, electrostatic self-assembly, and high-temperature carbonization. The obtained results showed that the minimum reflection loss of the absorbing carbon fiber obtained under the carbonization condition of 800 °C is −51.047 dB, an

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Zhao, Tingkai, Wenbo Jin, Yixue Wang, et al. "In situ synthesis and electromagnetic wave absorbing properties of sandwich microstructured graphene/La-doped barium ferrite nanocomposite." RSC Advances 7, no. 59 (2017): 37276–85. http://dx.doi.org/10.1039/c7ra06716j.

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Zhang, Huawei, Xinghai Zhou, Yuan Gao, et al. "Electromagnetic Wave-Absorbing and Bending Properties of Three-Dimensional Gradient Woven Composites with Triangular Sections." Polymers 14, no. 9 (2022): 1745. http://dx.doi.org/10.3390/polym14091745.

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In order to solve defects such as poor integrity, delamination failure, and narrow absorption bandwidth, three-dimensional (3D) gradient honeycomb woven composites (GHWCs) with triangular sections were designed and prepared. Three-dimensional gradient honeycomb woven fabric was crafted with carbon fiber (CF) filaments and basalt fiber (BF) filaments as raw materials on an ordinary loom. Then, the 3D honeycomb woven fabric filled with rigid polyurethane foam was used as the reinforcement, and epoxy resin (EP) doped with carbon black (CB) and carbonyl iron powder (CIP) was conducted as the matri

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41

Zhang, Huawei, Xinghai Zhou, Yuan Gao, et al. "Electromagnetic Wave-Absorbing and Bending Properties of Three-Dimensional Gradient Woven Composites with Triangular Sections." Polymers 14, no. 9 (2022): 1745. http://dx.doi.org/10.3390/polym14091745.

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Abstract:

In order to solve defects such as poor integrity, delamination failure, and narrow absorption bandwidth, three-dimensional (3D) gradient honeycomb woven composites (GHWCs) with triangular sections were designed and prepared. Three-dimensional gradient honeycomb woven fabric was crafted with carbon fiber (CF) filaments and basalt fiber (BF) filaments as raw materials on an ordinary loom. Then, the 3D honeycomb woven fabric filled with rigid polyurethane foam was used as the reinforcement, and epoxy resin (EP) doped with carbon black (CB) and carbonyl iron powder (CIP) was conducted as the matri

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42

Dosoudil, Rastislav, Marianna Ušáková, Jaroslav Franek, Jozef Sláma, and Vladimír Olah. "RF electromagnetic wave absorbing properties of ferrite polymer composite materials." Journal of Magnetism and Magnetic Materials 304, no. 2 (2006): e755-e757. http://dx.doi.org/10.1016/j.jmmm.2006.02.216.

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Cao Jia-Wei, Huang Yun-Hua, Zhang Yue, Liao Qing-Liang, and Deng Zhan-Qiang. "Research on electromagnetic wave absorbing properties of nano tetraleg ZnO." Acta Physica Sinica 57, no. 6 (2008): 3641. http://dx.doi.org/10.7498/aps.57.3641.

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Naito, Yoshiyuki, Jifang Yin, and Tetsuya Mizumoto. "Electromagnetic wave absorbing properties of carbon-rubber doped with ferrite." Electronics and Communications in Japan (Part II: Electronics) 71, no. 7 (1988): 77–83. http://dx.doi.org/10.1002/ecjb.4420710710.

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Du, Bin, Mei Cai, Xuan Wang, Junjie Qian, Chao He, and Anze Shui. "Enhanced electromagnetic wave absorption property of binary ZnO/NiCo2O4 composites." Journal of Advanced Ceramics 10, no. 4 (2021): 832–42. http://dx.doi.org/10.1007/s40145-021-0476-z.

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AbstractNowadays, metal oxide-based electromagnetic wave absorbing materials have aroused widely attentions in the application of telecommunication and electronics due to their selectable mechanical and outstanding dielectric properties. Herein, the binary ZnO/NiCo2O4 nanoparticles were successfully synthesized via hydrothermal reaction and the electromagnetic wave absorption properties of the composites were investigated in detail. As a result, benefiting from the dielectric loss, the as-obtained ZnO/NiCo2O4-7 samples possessed a minimum reflection loss value of −33.49 dB at 18.0 GHz with the

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Geeri, Satish, B. Krishna Murthy, Aditya Kolakoti, et al. "Influence of Magnetic Wood on Mechanical and Electromagnetic Wave-Absorbing Properties of Polymer Composites." International Journal of Polymer Science 2023 (February 1, 2023): 1–12. http://dx.doi.org/10.1155/2023/1142654.

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The application of wireless electronic devices is increasing nowadays; hence, there is a necessity for electromagnetic wave-absorbing material, which is mechanically stable. Polymer composites with magnetic wood as filler material were fabricated by hand lay-up methods of 6 mm thickness. For the proposed immersion duration, magnetic wood was developed by in situ chemical co-precipitation methods. The microwave absorbing phenomenon is evaluated based on the complex permeability, complex permittivity, dielectric tangent, and magnetic tangent losses. The experimentation was done by vector network

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Wei, Hu, and Li Cheng. "Wave Absorption and Thermal Stability of Nickel Coated Al2O3 Core-shell Composite Powder." MATEC Web of Conferences 187 (2018): 02004. http://dx.doi.org/10.1051/matecconf/201818702004.

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As a composite cermet material, the nickel coating on the surface of alumina particles has important application value because of its good electromagnetic wave absorption performance. In this study, nickel was deposited on the surface of alumina nanopowders by hydrothermal method and sintering method. The results show that the XRD results of nickel alumina show that Ni-Al2O3 nanoparticles has FCC face-centered cubic structure. The grain size is about 50 nm. The absorption characteristics of electromagnetic waves were measured at 2-18 GHz by HP 8722 es microwave network analyzer. The results sh

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Liu, Jingshun, Yamei Wang, Guanda Qu, Rui Liu, Yun Zhang, and Congliang Wang. "Microwave Absorbing Properties and Mechanism Analysis of Ni–Doped Fe–Based Metallic Microwires." Metals 12, no. 12 (2022): 2041. http://dx.doi.org/10.3390/met12122041.

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Fe–based metallic microwires possess unique microstructure and size effects, exhibiting favorable mechanical, electrical, and magnetic properties, thus distinguishing them as a possible agents for use as microwave absorbing materials. In this paper, the absorbing properties of Ni–doped Fe–based metallic microwires optimized by orthogonal experiments were investigated, and based on the optimal parameters, the influencing mechanism of the Ni doping amount on the absorbing properties was further analyzed. It was noted that at the frequency f = 8.36 GHz, the maximum reflection loss RL and electrom

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Liu, Yuan. "Advances in magnetic nano-wave absorbing materials." Applied and Computational Engineering 25, no. 1 (2023): 286–91. http://dx.doi.org/10.54254/2755-2721/25/20230780.

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Magnetic materials are materials with specific magnetic properties, produced mainly by chemical methods such as co-saturation and high temperature pyrolysis, and with controllable product morphology and size. Magnetic particles have a high surface activity and a tendency to agglomerate, which can not only improve their dispersion and biocompatibility, but also achieve specific functions through surface modification in the actual research process. The research and application of wave-absorbing materials will have a major impact on the development of civilian electromagnetic radiation shields. A

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Deng, An Zhong, You Jun Wang, and Xuan Gang Zhou. "Preparation and Properties of Scattering Electromagnetic Function Mortar Composite." Applied Mechanics and Materials 253-255 (December 2012): 445–50. http://dx.doi.org/10.4028/www.scientific.net/amm.253-255.445.

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Scattering electromagnetic function mortar composites was prepared by use of addition graphite into cement. The influence of graphite to mechanical properties and absorbing electromagnetic wave properties of cement mortar were researched. Electromagnetic characteristics of mortar composite was measured using the naval research laboratory(NRL) testing system. The results showed that graphite content had obvious effect on mechanical properties of mortar composite. Descended velocity of strengthen of compressive and flexural-tensile was farer when graphite content were bigger. In 2-18GHz frequenc

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