Microwave absorption properties of carbonyl iron-based paint coatings for military applications

Przybył, Wojciech; Januszko, Adam; Radek, Norbert; Szczepaniak, Marcin; Bogdanowicz, Krzysztof Artur; Plebankiewicz, Ireneusz; Szczodrowska, Bogusława; Mazurczuk, Robert

doi:10.1016/j.dt.2022.06.013

Cited by 19 publications

(13 citation statements)

References 19 publications

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“…13 Przybył et al used carbonyl iron for the manufacture of radar-absorbing paints reducing the radar signature of the objects that they cover. 14,15 Bahri-Laleh et al used carbonyl iron (CI) as a magnetic filler and polyaniline (PANI) as a polymeric filler via in-situ polymerization to produce a core-shell composite material with multidisciplinary properties. 16 Wang et al 17 and Ruiz-Perez et al 18 studied various types of carbon fillers according to the electrical features of the carbon materials to reach suitable EM wave shielding.…”

Section: Introductionmentioning

confidence: 99%

A novel three-layer woven fabric composite reinforced by (polyaniline + carbonyl iron) core-shell/carbonyl iron/polyaniline fillers for high-performance broadband radar absorbing structure

Danesh,

Beheshti,

Heidari-Rarani

2023

Journal of Composite Materials

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One of the most important applications of electromagnetic wave absorption is in stealth aircrafts and electromagnetic protection of avionic systems. The main limitations in the design of these structures are aerodynamics, thickness or weight, mechanical strength, manufacturing process, and reasonable cost. In this study, a novel three-layer woven fabric composite laminate (with a total thickness of about 3 mm) is proposed which each layer is reinforced by individual polyaniline, carbonyl iron, or (PANI + CI) core-shell fillers. The developed Non-dominated Sorting Genetic Algorithm II optimization algorithm suggests the stacking sequence of layers, the appropriate thickness of each layer, and the filler weight fraction in each layer to achieve a broadband absorption. Due to using both dielectric and magnetic absorbing fillers, this structure shows well-impedance matching and approximately absorbs 80% of the X-band (8-12 GHz) electromagnetic waves. The maximum reflection loss is about −14dB. Finally, the effect of the addition of absorbent particles on the mechanical properties has been investigated. Experimental results showed that the tensile modulus and strength decrease by about 21.5% and 20.6%, respectively, and the flexural modulus and strength reduce by 21.7% and 19.7%, respectively. However, the (PANI + CI) core-shell filler can be introduced as a high performance absorber filler because it suggests maximum reflection loss with low weight fraction compared to other fillers and consequently the minimum reduction in mechanical properties.

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Section: Introductionmentioning

confidence: 99%

A novel three-layer woven fabric composite reinforced by (polyaniline + carbonyl iron) core-shell/carbonyl iron/polyaniline fillers for high-performance broadband radar absorbing structure

Danesh,

Beheshti,

Heidari-Rarani

2023

Journal of Composite Materials

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“…MEGs have been widely used as coating filters, and their reflection loss performance were well-studied [ [21] , [22] , [23] , [24] , [25] ], which indicates addition of magnetic materials can effectively reduce radar wave reflection of materials. When the MEG is used in a form of large-area aerosol, its radar jamming efficiency greatly depends on absorption and scattering functions of each MEG particles, which, however, cannot be obtained by traditional laminate-based measurement methods (such as vector network instrument) [ 26 , 27 ].…”

Section: Introductionmentioning

confidence: 99%

An Innovative model of magnetically intercalated expanded graphite for calculating radar attenuation performance at 2–18 GHz

Zhang

Tang

Chen

et al. 2023

Heliyon

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“…Rapid prototyping has a wide range of applications and often involves the application of special coatings [20,21], including DLC [22][23][24] or electrospark deposition [25,26], modification of the morphology of the surface layer [27], or welding joints [28]. The presented article introduces a prototype of a flexible cup for a harmonic drive, which due to its significant possible gear ratios and high precision, can find applications in hydraulic control [29][30][31] and the military sector [32][33][34]. Due to the multidimensional dependencies, the implementation of formal statistical techniques [35][36][37], including expert systems support [38] and nonparametric approaches [39][40][41], is necessary.…”

Section: Introductionmentioning

confidence: 99%

Geometrical Accuracy of Flexspline Prototypes Made by FDM/MEM Methods

PACANA

2023

Quality Production Improvement and System Safety

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Abstract. This article presents an analysis of the geometrical accuracy of flexspline prototypes that were a component of harmonic drive. To produce the test models, a MEM (Melting and Extrusion Modeling) method was used. This additive method allows the production of elements with very complicated shapes from various polymeric materials. As the test model, a flexspline made of ABS (acrylonitrile-butadiene-styrene) was assumed. Such a special gear with a complicated construction was chosen, because its unique design allows one to obtain clear conclusions from the analysis. To expand the scope of research, models of flexspline with four different construction solutions were made and tested. As a step of the analysis, contact measurements were performed for several flexspline models on the coordinate measuring machine to check their dimensions. The verification of the geometrical accuracy of flexspline models will allow to assess the usefulness of additive methods for the production of prototypes and finished products.

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Microwave absorption properties of carbonyl iron-based paint coatings for military applications

Cited by 19 publications

References 19 publications

A novel three-layer woven fabric composite reinforced by (polyaniline + carbonyl iron) core-shell/carbonyl iron/polyaniline fillers for high-performance broadband radar absorbing structure

A novel three-layer woven fabric composite reinforced by (polyaniline + carbonyl iron) core-shell/carbonyl iron/polyaniline fillers for high-performance broadband radar absorbing structure

An Innovative model of magnetically intercalated expanded graphite for calculating radar attenuation performance at 2–18 GHz

Geometrical Accuracy of Flexspline Prototypes Made by FDM/MEM Methods

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