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An assessment of the Ti-V-O system
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering. Thermo-Calc Software AB, Sweden.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering. Thermo-Calc Software AB, Sweden.ORCID iD: 0000-0002-8493-9802
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering. Thermo-Calc Software AB, Sweden.ORCID iD: 0000-0001-5031-919X
2017 (English)In: Journal of Alloys and Compounds, ISSN 0925-8388, E-ISSN 1873-4669, Vol. 722, 365-374 p.Article in journal (Refereed) Published
Abstract [en]

The Ti-V-O system has been assessed using the CALPHAD method based on recent assessments of its binary systems. The present work focuses on the following oxide sub-systems: V2O3-TiO2, VO2-TiO2, V2O5-TiO2 and V2O3-Ti2O3-TiO2. The liquid phase was described by the ionic liquid model while the solid solution oxide phases were modeled using a two-sublattice model within the framework of the compound energy formalism. The available experimental data were critically evaluated and a consistent set of thermodynamic model parameters was obtained. Satisfactory agreement between calculated and experimental information especially of the stability, solubility and phase relations of various oxide phases is achieved. Reliable predictions of oxygen solubility in Ti-V alloys can be made using the present thermodynamic descriptions.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 722, 365-374 p.
Keyword [en]
CALPHAD, Thermodynamic modelling, V2O3-Ti2O3-TiO2, V2O3-TiO2, V2O5-TiO2, VO2-TiO2
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-210583DOI: 10.1016/j.jallcom.2017.05.326Scopus ID: 2-s2.0-85020921319OAI: oai:DiVA.org:kth-210583DiVA: diva2:1119106
Note

QC 20170703

Available from: 2017-07-03 Created: 2017-07-03 Last updated: 2017-07-03Bibliographically approved

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