High entropy alloy reinforcement for superior electromagnetic interference shielding performance in carbon fiber-reinforced polymer composites

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dc.authorid0000-0002-2380-3258
dc.authorid0000-0003-1659-1303
dc.contributor.authorKucukelyas, Burak
dc.contributor.authorKaykilarli, Cantekin
dc.contributor.authorEken, Taha Yasin
dc.contributor.authorErbas, Ugur
dc.contributor.authorTabakcioglu, Mehmet Baris
dc.date.accessioned2026-02-08T15:14:48Z
dc.date.available2026-02-08T15:14:48Z
dc.date.issued2025
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractThis study explores the enhancement of electromagnetic interference (EMI) shielding effectiveness (SE) in carbon fiber-reinforced polymer (CFRP) composites through the integration of equatomic CoCuFeNi high entropy alloy (HEA) particles. Employing mechanical alloying (MA), CoCuFeNi HEA powders were synthesized, revealing a face-centered cubic structure with crystallite and particle sizes of 14.7 nm and 11.62 mu m, respectively. The integration of these HEA particles at concentrations of 5%, 10%, and 15% by weight into epoxy resin, followed by the fabrication of composites using the hand lay-up technique. Detailed structural analysis of HEA particles confirmed the successful synthesis of equatomic HEAs via MA. Structural analysis of the HEA integrated composites revealed vacancy regions at 5% concentration, a uniform distribution at 10%, and particle agglomeration causing inhomogeneity and vacancies at 15%. The composites demonstrated significant improvements in EMI SE, with the 10% HEA sample showing superior performance compared to the other samples. Specifically, the 10% HEA composite achieved a peak SE of 73.09 dB at 4.72 GHz, attributed to the optimized distribution of HEA particles that enhanced electrical conductivity and reflective properties.Highlights CoCuFeNi HEA particles were successfully synthesized via MA. HEA particles were added to epoxy at 5, 10, and 15 wt% for composite fabrication. Voids were observed in HEA5, uniformity in HEA10, and clustering in HEA15. EMI shielding was assessed using VNA, SE, dielectric permittivity, and magnetic permeability. The HEA10 composite achieved peak EMI shielding, 73.09 dB at 4.72 GHz.
dc.description.sponsorshipTurkiye Bilimsel ve Teknolojik Arastirma Kurumu [222M403]
dc.description.sponsorshipTurkiye Bilimsel ve Teknolojik Arastirma Kurumu, Grant/Award Number: 222M403
dc.identifier.doi10.1002/pc.29260
dc.identifier.endpage4590
dc.identifier.issn0272-8397
dc.identifier.issn1548-0569
dc.identifier.issue5
dc.identifier.scopus2-s2.0-105001658406
dc.identifier.scopusqualityQ1
dc.identifier.startpage4576
dc.identifier.urihttps://doi.org/10.1002/pc.29260
dc.identifier.urihttps://hdl.handle.net/20.500.12885/5444
dc.identifier.volume46
dc.identifier.wosWOS:001357102500001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofPolymer Composites
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzWOS_KA_20260207
dc.subjectCFRP
dc.subjectelectromagnetic interference shielding effectiveness
dc.subjecthigh entropy alloys
dc.subjectreflection
dc.subjecttransmitted waves
dc.titleHigh entropy alloy reinforcement for superior electromagnetic interference shielding performance in carbon fiber-reinforced polymer composites
dc.typeArticle

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