Change in the Oxide Structure of Al-12Si Melts in the Presence of Sr

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dc.contributor.authorKahruman, Cem
dc.contributor.authorAlev, Ugur
dc.contributor.authorDispinar, Derya
dc.date.accessioned2026-02-08T15:08:15Z
dc.date.available2026-02-08T15:08:15Z
dc.date.issued2023
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractBifilm defects are the surface entrained double oxide films that are introduced into melts during turbulence and disturbance to the surface of the melt. These defects lead to porosity formation if they are not cleaned from the melt. Thus, the characterisation of the dross that is formed on the surface of the melt becomes a key parameter. In this work, Sr containing Al12Si alloy was used. For the modification process, 100, 200 and 300 ppm Sr was added to the alloy. The oxidation tests were carried out in liquid state at 700, 750 and 800 °C for holding durations of 12, 24, 36 and 48 hours. The structure was characterised by optical microscopy, Scanning Electron Microscopy, X-Ray Diffraction and X-ray photoelectron spectroscopy techniques. It was found that after 12 hours of holding, spinel oxides were formed on the surface mainly SrO.Al2O3 and MgO.Al2O3.
dc.identifier.doi10.2339/politeknik.872350
dc.identifier.endpage1305
dc.identifier.issn1302-0900
dc.identifier.issn2147-9429
dc.identifier.issue4
dc.identifier.startpage1299
dc.identifier.trdizinid1236102
dc.identifier.urihttps://doi.org/10.2339/politeknik.872350
dc.identifier.urihttps://hdl.handle.net/20.500.12885/4889
dc.identifier.volume26
dc.indekslendigikaynakTR-Dizin
dc.language.isoen
dc.relation.ispartofPoliteknik Dergisi
dc.relation.publicationcategoryMakale - Ulusal Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_TR-Dizin_20260207
dc.subjectXPS
dc.subjectStrontium modification
dc.subjectAl-12Si
dc.subjectoxide films
dc.titleChange in the Oxide Structure of Al-12Si Melts in the Presence of Sr
dc.typeArticle

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