Thermodynamic assessment of the PbO–V2O5 system. (December 2016)

• Record Type: Journal Article
• Authors: Xie, Wei; Wang, Nai; Qiao, Zhiyu; Cao, Zhanmin
• Is Part Of: Calphad. Volume 55:Part 1(2016)
• Page Start: 41
• Page End: 46
• Publication Date: 2016-12
• Subjects: PbO–V2O5 -- Modified quasichemical model -- Phase diagram -- Thermodynamics; Phase diagrams -- Data processing -- Periodicals; Thermochemistry -- Data processing -- Periodicals; Diagrammes de phases -- Informatique -- Périodiques; Thermochimie -- Informatique -- Périodiques; Thermodynamica; Electronic journals; 541.363
• DOI: 10.1016/j.calphad.2016.04.005
• Languages: English
• ISSNs: 0364-5916

Abstract

Abstract: Based on the experimental phase equilibria and thermodynamic data, a critical evaluation and thermodynamic assessment of the PbO–V2 O5 system has been performed. The liquid phase is described by the modified quasichemical model, which takes short-range ordering in liquid solution into account. All intermediate phases are treated as stoichiometric compounds. A set of self-consistent thermodynamic functions for all phases in the PbO–V2 O5 system is obtained. The available phase equilibria and thermodynamic data are reproduced well within experimental error limits. Highlights: Modified Quasichemical Model is used to describe the PbO–V2 O5 liquid phase. Discrepancies of phase equilibria and thermodynamic data in literature are evaluated. A good agreement is obtained between the calculated and experimental results.