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

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dc.contributor.author Malan, Willem Dutoit
dc.contributor.author Akdogan, Guven
dc.contributor.author Taskinen, Pekka
dc.contributor.author Hamuyuni, Joseph
dc.contributor.author Zietsman, Johannes Hendrik
dc.date.accessioned 2018-12-14T10:22:21Z
dc.date.issued 2018-12
dc.description.abstract The 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.department Materials Science and Metallurgical Engineering en_ZA
dc.description.embargo 2019-12-01
dc.description.librarian hj2018 en_ZA
dc.description.sponsorship The Glencore Chair in Pyrometallurgical Modelling at the University of Pretoria, South Africa. en_ZA
dc.description.uri https://www.elsevier.com/locate/calphad en_ZA
dc.identifier.citation Malan, 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.issn 0364-5916 (print)
dc.identifier.issn 1873-2984 (online)
dc.identifier.other 10.1016/j.calphad.2018.10.006
dc.identifier.uri http://hdl.handle.net/2263/68108
dc.language.iso en en_ZA
dc.publisher Elsevier en_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.subject Phase diagram en_ZA
dc.subject Static experiments en_ZA
dc.subject Thermodynamics en_ZA
dc.subject Ti-V-O system en_ZA
dc.subject Phase equilibria en_ZA
dc.subject Thermodynamic parameter en_ZA
dc.subject Thermodynamic evaluation en_ZA
dc.subject Static experiments en_ZA
dc.subject Quasi-chemical models en_ZA
dc.subject High-temperature equilibration en_ZA
dc.subject X-ray spectroscopy en_ZA
dc.subject Energy dispersive en_ZA
dc.subject Compound energy formalisms en_ZA
dc.subject Calculated phase diagrams en_ZA
dc.subject Vanadium en_ZA
dc.subject Titanium dioxide en_ZA
dc.subject Thermodynamic stability en_ZA
dc.subject Solubility en_ZA
dc.subject Slags en_ZA
dc.subject Scanning electron microscopy (SEM) en_ZA
dc.subject Oxide minerals en_ZA
dc.subject Energy dispersive spectroscopy (EDS) en_ZA
dc.title Phase equilibria and thermodynamic evaluation of the Ti-V-O system in air en_ZA
dc.type Postprint Article en_ZA


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