Thermodynamic assessment of chemical and electrochemical stability of vanadium silicides
The phase and chemical equilibria in the V–Si system at 25 °C were considered. The possible maximum solid solubility of Si in bcc-V at 25 °C was estimated. The thermodynamic activities of the components in this saturated solution were calculated. The state diagram of the V–Si–O system at 25 °C was p...
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| Format: | Article |
| Language: | English |
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Kazan Federal University
2020-03-01
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| Series: | Учёные записки Казанского университета: Серия Естественные науки |
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| Online Access: | https://kpfu.ru/uz-eng-ns-2020-1-4.html |
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| author | P.A. Nikolaychuk |
| author_facet | P.A. Nikolaychuk |
| author_sort | P.A. Nikolaychuk |
| collection | DOAJ |
| description | The phase and chemical equilibria in the V–Si system at 25 °C were considered. The possible maximum solid solubility of Si in bcc-V at 25 °C was estimated. The thermodynamic activities of the components in this saturated solution were calculated. The state diagram of the V–Si–O system at 25 °C was plotted and the characteristics of their invariant conditions were calculated. The activity – pH diagram for vanadium(V) compounds was plotted. The potential – pH diagram of the V–Si–H2O system at 25 °C, air pressure of 1 bar, and activities of ions in solution equal to 1 mol/L was plotted. The thermodynamic analysis of chemical and electrochemical stability of the V–Si system alloys was performed. |
| format | Article |
| id | doaj-art-b37f635d5ca8476cbd7b1f983cb0f8fd |
| institution | Kabale University |
| issn | 2542-064X 2500-218X |
| language | English |
| publishDate | 2020-03-01 |
| publisher | Kazan Federal University |
| record_format | Article |
| series | Учёные записки Казанского университета: Серия Естественные науки |
| spelling | doaj-art-b37f635d5ca8476cbd7b1f983cb0f8fd2025-01-02T04:15:05ZengKazan Federal UniversityУчёные записки Казанского университета: Серия Естественные науки2542-064X2500-218X2020-03-011621526810.26907/2542-064X.2020.1.52-68Thermodynamic assessment of chemical and electrochemical stability of vanadium silicidesP.A. Nikolaychuk0University of Greifswald, Greifswald, 17487 GermanyThe phase and chemical equilibria in the V–Si system at 25 °C were considered. The possible maximum solid solubility of Si in bcc-V at 25 °C was estimated. The thermodynamic activities of the components in this saturated solution were calculated. The state diagram of the V–Si–O system at 25 °C was plotted and the characteristics of their invariant conditions were calculated. The activity – pH diagram for vanadium(V) compounds was plotted. The potential – pH diagram of the V–Si–H2O system at 25 °C, air pressure of 1 bar, and activities of ions in solution equal to 1 mol/L was plotted. The thermodynamic analysis of chemical and electrochemical stability of the V–Si system alloys was performed.https://kpfu.ru/uz-eng-ns-2020-1-4.htmlv–si systemvanadium silicidesphase equilibrialow temperature oxidationchemical and electrochemical stability |
| spellingShingle | P.A. Nikolaychuk Thermodynamic assessment of chemical and electrochemical stability of vanadium silicides Учёные записки Казанского университета: Серия Естественные науки v–si system vanadium silicides phase equilibria low temperature oxidation chemical and electrochemical stability |
| title | Thermodynamic assessment of chemical and electrochemical stability of vanadium silicides |
| title_full | Thermodynamic assessment of chemical and electrochemical stability of vanadium silicides |
| title_fullStr | Thermodynamic assessment of chemical and electrochemical stability of vanadium silicides |
| title_full_unstemmed | Thermodynamic assessment of chemical and electrochemical stability of vanadium silicides |
| title_short | Thermodynamic assessment of chemical and electrochemical stability of vanadium silicides |
| title_sort | thermodynamic assessment of chemical and electrochemical stability of vanadium silicides |
| topic | v–si system vanadium silicides phase equilibria low temperature oxidation chemical and electrochemical stability |
| url | https://kpfu.ru/uz-eng-ns-2020-1-4.html |
| work_keys_str_mv | AT panikolaychuk thermodynamicassessmentofchemicalandelectrochemicalstabilityofvanadiumsilicides |