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: | Učënye Zapiski Kazanskogo Universiteta. Seriâ Estestvennye Nauki |
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| Online Access: | https://kpfu.ru/uz-eng-ns-2020-1-4.html |
| _version_ | 1797815052011569152 |
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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. |
| first_indexed | 2024-03-13T08:16:54Z |
| format | Article |
| id | doaj.art-b37f635d5ca8476cbd7b1f983cb0f8fd |
| institution | Directory Open Access Journal |
| issn | 2542-064X 2500-218X |
| language | English |
| last_indexed | 2024-03-13T08:16:54Z |
| publishDate | 2020-03-01 |
| publisher | Kazan Federal University |
| record_format | Article |
| series | Učënye Zapiski Kazanskogo Universiteta. Seriâ Estestvennye Nauki |
| spelling | doaj.art-b37f635d5ca8476cbd7b1f983cb0f8fd2023-05-31T15:11:35ZengKazan Federal UniversityUčënye Zapiski Kazanskogo Universiteta. Seriâ Estestvennye Nauki2542-064X2500-218X2020-03-011621526810.26907/2542-064X.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 Učënye Zapiski Kazanskogo Universiteta. Seriâ Estestvennye Nauki 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 |