Phase equilibria and thermodynamic evaluation of the Ti-V-O system in air

dc.contributor.authorMalan, Willem Dutoit
dc.contributor.authorAkdogan, Guven
dc.contributor.authorTaskinen, Pekka
dc.contributor.authorHamuyuni, Joseph
dc.contributor.authorZietsman, Johannes Hendrik
dc.contributor.email15399878@tuks.co.zaen_ZA
dc.date.accessioned2018-12-14T10:22:21Z
dc.date.issued2018-12
dc.description.abstractThe Ti-V-O system was studied experimentally from 700 °C to 1500 °C by high-temperature equilibration, quenching, scanning electron microscope and Energy-Dispersive X-Ray spectroscopy. The solubility of titanium in the slag is less than 3 mol% at 1500 °C and the vanadium solubility in the rutile phase reached a maximum of 7.8 mol% at 1400 °C. The thermodynamic evaluation was performed with FactSage 7.0. The solubility of vanadium in the rutile phase was developed within the framework of the compound energy formalism. The properties of the liquid phase were described with the quasichemical model. A set of self-consistent thermodynamic parameters was estimated well within acceptable limits. The calculated phase diagram of the Ti-V-O system in air is presented and compared to experimental observations and other phase diagram data from literature.en_ZA
dc.description.departmentMaterials Science and Metallurgical Engineeringen_ZA
dc.description.embargo2019-12-01
dc.description.librarianhj2018en_ZA
dc.description.librarianmi2025en
dc.description.sdgSDG-07: Affordable and clean energyen
dc.description.sdgSDG-09: Industry, innovation and infrastructureen
dc.description.sdgSDG-12: Responsible consumption and productionen
dc.description.sdgSDG-13: Climate actionen
dc.description.sponsorshipThe Glencore Chair in Pyrometallurgical Modelling at the University of Pretoria, South Africa.en_ZA
dc.description.urihttps://www.elsevier.com/locate/calphaden_ZA
dc.identifier.citationMalan, W.D., Akdogan, G., Taskinen, P. et al. 2018, 'Phase equilibria and thermodynamic evaluation of the Ti-V-O system in air', Calphad, vol. 63, pp. 220-228.en_ZA
dc.identifier.issn0364-5916 (print)
dc.identifier.issn1873-2984 (online)
dc.identifier.other10.1016/j.calphad.2018.10.006
dc.identifier.urihttp://hdl.handle.net/2263/68108
dc.language.isoenen_ZA
dc.publisherElsevieren_ZA
dc.rights© 2018 Elsevier Ltd. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Calphad. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in Calphad, vol. 63, pp. 220-228, 2018. doi : 10.1016/j.calphad.2018.10.006.en_ZA
dc.subjectPhase diagramen_ZA
dc.subjectStatic experimentsen_ZA
dc.subjectThermodynamicsen_ZA
dc.subjectTi-V-O systemen_ZA
dc.subjectPhase equilibriaen_ZA
dc.subjectThermodynamic parameteren_ZA
dc.subjectThermodynamic evaluationen_ZA
dc.subjectStatic experimentsen_ZA
dc.subjectQuasi-chemical modelsen_ZA
dc.subjectHigh-temperature equilibrationen_ZA
dc.subjectX-ray spectroscopyen_ZA
dc.subjectEnergy dispersiveen_ZA
dc.subjectCompound energy formalismsen_ZA
dc.subjectCalculated phase diagramsen_ZA
dc.subjectVanadiumen_ZA
dc.subjectTitanium dioxideen_ZA
dc.subjectThermodynamic stabilityen_ZA
dc.subjectSolubilityen_ZA
dc.subjectSlagsen_ZA
dc.subjectScanning electron microscopy (SEM)en_ZA
dc.subjectOxide mineralsen_ZA
dc.subjectEnergy dispersive spectroscopy (EDS)en_ZA
dc.subject.otherEngineering, built environment and information technology articles SDG-07
dc.subject.otherSDG-07: Affordable and clean energy
dc.subject.otherEngineering, built environment and information technology articles SDG-09
dc.subject.otherSDG-09: Industry, innovation and infrastructure
dc.subject.otherEngineering, built environment and information technology articles SDG-12
dc.subject.otherSDG-12: Responsible consumption and production
dc.subject.otherEngineering, built environment and information technology articles SDG-13
dc.subject.otherSDG-13: Climate action
dc.titlePhase equilibria and thermodynamic evaluation of the Ti-V-O system in airen_ZA
dc.typePostprint Articleen_ZA

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