Synthesis, structural and magnetic characterization of spherical high entropy alloy CoCuFeNi particles by hydrogen reduction assisted ultrasonic spray pyrolysis

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dc.authorid0000-0003-1659-1303
dc.contributor.authorKucukelyas, Burak
dc.contributor.authorSafaltin, Serzat
dc.contributor.authorSam, Ebru Devrim
dc.contributor.authorGurmen, Sebahattin
dc.date.accessioned2026-02-12T21:04:55Z
dc.date.available2026-02-12T21:04:55Z
dc.date.issued2022
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractThe present study focuses on the synthesis, structural and magnetic characterization of CoCuFeNi high entropy alloy particles. The hydrogen reduction assisted ultrasonic spray pyrolysis method was used to synthesize nanocrystalline quaternary CoCuFeNi particles in a single step. The effect of synthesis temperature on the structure, morphology and the size of particles was investigated. The syntheses were performed at 700 degrees C, 800 degrees C, and 900 degrees C with 0.1 M concentration of metal nitrate salts precursor solution. The structure and morphology of products were characterized through X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy and vibrating sample magnetometer studies. Diffraction pattern based calculations revealed that crystallite sizes of CoCuFeNi particles were in the range of 15.6-26.7 nm. Scanning electron microscopy and energy dispersive spectroscopy investigations showed that particles were agglomerated from crystallites and in spherical morphology with equiatomic elemental composition. According to vibrating sample magnetometry results, soft magnetic properties were observed for CoCuFeNi particles. X-ray photoelectron spectroscopy results showed that the surface has a thin layer of copper oxide.
dc.description.sponsorshipIstanbul Technical University Research Fund (ITU-BAP) [39827]
dc.description.sponsorshipThe authors would like to thank Istanbul Technical University Research Fund (ITU-BAP) under Project No. 39827 for the financial support of the present study.
dc.identifier.doi10.1515/ijmr-2021-8519
dc.identifier.endpage315
dc.identifier.issn1862-5282
dc.identifier.issn2195-8556
dc.identifier.issue4
dc.identifier.scopus2-s2.0-85127873147
dc.identifier.scopusqualityQ3
dc.identifier.startpage306
dc.identifier.urihttps://doi.org/10.1515/ijmr-2021-8519
dc.identifier.urihttps://hdl.handle.net/20.500.12885/6729
dc.identifier.volume113
dc.identifier.wosWOS:000773020200001
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWalter De Gruyter Gmbh
dc.relation.ispartofInternational Journal of Materials Research
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20260212
dc.subjectCoCuFeNi particles
dc.subjectHigh entropy alloys
dc.subjectHydrogen reduction
dc.subjectMagnetic materials
dc.subjectUltrasonic spray pyrolysis
dc.titleSynthesis, structural and magnetic characterization of spherical high entropy alloy CoCuFeNi particles by hydrogen reduction assisted ultrasonic spray pyrolysis
dc.typeArticle

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