Corrosion Resistance of Novel Fly Ash–Based Forsterite–Spinel Refractory Ceramics

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dc.contributor.authorNguyen, Martincs
dc.contributor.authorSokolář, Radomírcs
dc.coverage.issue4cs
dc.coverage.volume15cs
dc.date.issued2022-02-12cs
dc.description.abstractThis article aims to investigate the corrosion resistance of novel fly ash–based forsterite–spinel (Mg2SiO4-MgAl2O4) refractory ceramics to various corrosive media in comparison with reactive alumina–based ceramics. Because fly ash is generated worldwide in large quantities as a secondary product from coal-burning power plants, it can be utilized as an inexpensive source of aluminum and silicon oxides. Corrosion resistance to iron, clinker, alumina, and copper was observed by scanning electron microscope with an elemental probe. The influence on the properties after firing was also investigated. Fly ash–based and reactive alumina–based mixtures were designed to contain 10%, 15% and 20% of spinel after firing. Raw material mixtures were sintered at 1550 °C for two hours. Sintered samples were characterized by X-ray diffraction analysis and scanning electron microscopy. The apparent porosity, bulk density, modulus of rupture, refractory and thermo–mechanical properties were also investigated. The experimental results showed that the modulus of rupture, thermal shock resistance and microstructure were improved with increasing amounts of spinel in the fired samples. An analysis of the transition zones between corrosive media and ceramics revealed that all mixtures have good resistance against corrosion to iron, clinker, aluminium and copper.en
dc.formattextcs
dc.format.extent1-18cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMaterials . 2022, vol. 15, issue 4, p. 1-18.en
dc.identifier.doi10.3390/ma15041363cs
dc.identifier.issn1996-1944cs
dc.identifier.orcid0000-0003-1321-2785cs
dc.identifier.orcid0000-0001-6913-2018cs
dc.identifier.other176496cs
dc.identifier.researcheridAAQ-4131-2020cs
dc.identifier.researcheridACI-9142-2022cs
dc.identifier.scopus57203352861cs
dc.identifier.scopus15066105400cs
dc.identifier.urihttp://hdl.handle.net/11012/203907
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofMaterialscs
dc.relation.urihttps://www.mdpi.com/1996-1944/15/4/1363cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1996-1944/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectforsteriteen
dc.subjectspinelen
dc.subjectfly ashen
dc.subjectcorrosion resistanceen
dc.subjectrefractory ceramicsen
dc.titleCorrosion Resistance of Novel Fly Ash–Based Forsterite–Spinel Refractory Ceramicsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-176496en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:45:59en
sync.item.modts2025.01.17 19:36:23en
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav technologie stavebních hmot a dílcůcs
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