A comparative study of coal fly and bottom ashes as sustainable electroactive vibration damping materials

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dc.authorid0000-0002-3369-6193
dc.authorid0000-0003-2318-6242
dc.contributor.authorBegen, Deniz
dc.contributor.authorCalis-Ismetoglu, Gokce
dc.contributor.authorGumus, Omer Yunus
dc.contributor.authorUnal, Halil Ibrahim
dc.date.accessioned2026-02-08T15:16:03Z
dc.date.available2026-02-08T15:16:03Z
dc.date.issued2024
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractCoal is used in most of the power and chemical plants to meet energy needs which produce various waste ashes. Reuse of these ashes as electroactive materials has great importance for sustainable development. In this study, it was detected that the main components of coal fly (CFA) and bottom ashes (CBA) were oxides of silica (SiO2), 2 ), iron (Fe2O3), 2 O 3 ), aluminium (Al2O3), 2 O 3 ), and magnesium (MgO), besides carbon. These are well-known electrorheological (ER) active materials. The aim of this study is to reveal dielectric and electroactive vibration damping capabilities of CFA and CBA. According to the dielectric and ER flow tests carried out in insulating silicone oil (SO), the optimum concentration of particles was determined to be 35 wt.% for both ashes. Higher ER yield stress (tau y tau y = 135 Pa), higher ER efficiency (32.8), and better viscoelastic properties (tau c= tau c = 128 Pa, G' = 680 kPa) under 3.0 kV mm-1 applied electric field were obtained for 35CFA/SO suspension system compared to 35CBA/SO (tau y tau y = 125 Pa, ER eff = 24.0, tau c = 55 Pa, G' = 260 kPa). Although it was concluded that both ashes can be upcycled to sustainable and smart vibration damping alternative materials, better performance was observed for CFA particles.
dc.identifier.doi10.4491/eer.2023.561
dc.identifier.issn1226-1025
dc.identifier.issn2005-968X
dc.identifier.issue4
dc.identifier.scopus2-s2.0-85188249539
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.4491/eer.2023.561
dc.identifier.urihttps://hdl.handle.net/20.500.12885/6106
dc.identifier.volume29
dc.identifier.wosWOS:001286314200008
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherKorean Soc Environmental Engineers - Ksee
dc.relation.ispartofEnvironmental Engineering Research
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzWOS_KA_20260207
dc.subjectCoal bottom ash
dc.subjectcoal fly ash
dc.subjectdielectric
dc.subjectelectrorheology
dc.subjectsustainable material
dc.subjectupcycling
dc.titleA comparative study of coal fly and bottom ashes as sustainable electroactive vibration damping materials
dc.typeArticle

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