Phase diagrams of zirconium dioxide systems with yttrium and scandium oxides
The literature data on the study of phase equilibria in systems zirconia with yttria and scandia are analysed. Possible schemes of low-temperature phase equilibria in ZrO2-Y2O3 and ZrO2-Sc2O3 systems are presented taking into account the third law of thermodynamics. The coordinates of non-vari...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Voronezh State University
2023-06-01
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| Series: | Конденсированные среды и межфазные границы |
| Subjects: | |
| Online Access: | https://journals.vsu.ru/kcmf/article/view/11106 |
| _version_ | 1797754770767740928 |
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| author | Pavel P. Fedorov Elena V. Chernova |
| author_facet | Pavel P. Fedorov Elena V. Chernova |
| author_sort | Pavel P. Fedorov |
| collection | DOAJ |
| description | The literature data on the study of phase equilibria in systems zirconia with yttria and scandia are analysed. Possible schemes of low-temperature phase equilibria in ZrO2-Y2O3 and ZrO2-Sc2O3 systems are presented taking into account the third law of thermodynamics.
The coordinates of non-variant transformations in these systems are tabulated. A sign of non-equilibrium states is the observation of non-diffusion processes of ordering of solid solutions. The modified cryoscopy method is used to calculate the distribution coefficients of scandia and yttria during the crystallization of the ZrO2 melt.
The possibilities for the existence of a set of ordered phases in the ZrO2-Y2O3 system and diffuse phase transition in the cubic modification of zirconia are discussed. |
| first_indexed | 2024-03-12T17:37:12Z |
| format | Article |
| id | doaj.art-faef2c65a7034708907cfba5b4138e88 |
| institution | Directory Open Access Journal |
| issn | 1606-867X |
| language | English |
| last_indexed | 2024-03-12T17:37:12Z |
| publishDate | 2023-06-01 |
| publisher | Voronezh State University |
| record_format | Article |
| series | Конденсированные среды и межфазные границы |
| spelling | doaj.art-faef2c65a7034708907cfba5b4138e882023-08-04T10:03:33ZengVoronezh State UniversityКонденсированные среды и межфазные границы1606-867X2023-06-0125210.17308/kcmf.2023.25/11106Phase diagrams of zirconium dioxide systems with yttrium and scandium oxidesPavel P. Fedorov0https://orcid.org/0000-0002-2918-3926Elena V. Chernova1https://orcid.org/0000-0001-7401-5019Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova st., Moscow 119991, Russian Federation Dr. Sci. (Chem.), Full Professor, Chief Researcher, Prokhorov General Physics Institute of the Russian Academy of Sciences (Moscow, Russian Federation) Prokhorov General Physics Institute of the Russian Academy of Sciences, 38 Vavilova st., Moscow 119991, Russian Federation Junior Researcher, Prokhorov General Physics Institute of the Russian Academy of Science (Moscow, Russian Federation).The literature data on the study of phase equilibria in systems zirconia with yttria and scandia are analysed. Possible schemes of low-temperature phase equilibria in ZrO2-Y2O3 and ZrO2-Sc2O3 systems are presented taking into account the third law of thermodynamics. The coordinates of non-variant transformations in these systems are tabulated. A sign of non-equilibrium states is the observation of non-diffusion processes of ordering of solid solutions. The modified cryoscopy method is used to calculate the distribution coefficients of scandia and yttria during the crystallization of the ZrO2 melt. The possibilities for the existence of a set of ordered phases in the ZrO2-Y2O3 system and diffuse phase transition in the cubic modification of zirconia are discussed.https://journals.vsu.ru/kcmf/article/view/11106zirconiayttriascandiasolid solutionsorderingphase diagramsdistribution coefficients |
| spellingShingle | Pavel P. Fedorov Elena V. Chernova Phase diagrams of zirconium dioxide systems with yttrium and scandium oxides Конденсированные среды и межфазные границы zirconia yttria scandia solid solutions ordering phase diagrams distribution coefficients |
| title | Phase diagrams of zirconium dioxide systems with yttrium and scandium oxides |
| title_full | Phase diagrams of zirconium dioxide systems with yttrium and scandium oxides |
| title_fullStr | Phase diagrams of zirconium dioxide systems with yttrium and scandium oxides |
| title_full_unstemmed | Phase diagrams of zirconium dioxide systems with yttrium and scandium oxides |
| title_short | Phase diagrams of zirconium dioxide systems with yttrium and scandium oxides |
| title_sort | phase diagrams of zirconium dioxide systems with yttrium and scandium oxides |
| topic | zirconia yttria scandia solid solutions ordering phase diagrams distribution coefficients |
| url | https://journals.vsu.ru/kcmf/article/view/11106 |
| work_keys_str_mv | AT pavelpfedorov phasediagramsofzirconiumdioxidesystemswithyttriumandscandiumoxides AT elenavchernova phasediagramsofzirconiumdioxidesystemswithyttriumandscandiumoxides |