Please use this identifier to cite or link to this item:
https://dspace.uzhnu.edu.ua/jspui/handle/lib/21860
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Сідей, Василь Іванович | - |
dc.date.accessioned | 2018-10-31T09:41:20Z | - |
dc.date.available | 2018-10-31T09:41:20Z | - |
dc.date.issued | 2017-11 | - |
dc.identifier.citation | Науковий вісник Ужгородського університету. Серія "Хімія". 2017, № 2 (38), С.11-13 | uk |
dc.identifier.issn | 2414-0260 | - |
dc.identifier.uri | https://dspace.uzhnu.edu.ua/jspui/handle/lib/21860 | - |
dc.description.abstract | The qualitative crystallochemical model has been developed in order to explain temperature-induced phase transitions observed for a number of perovskite structures ABX3 and their relatives and derivatives. Due to quite different intrinsic bond valences, the A–X and B–X bonds in perovskite structures have substantially different thermal expansion rates; as a result, an increase of temperature leads to a preferential elongation of more labile A–X bonds. Hence, heating a perovskite structure at hand can lead to different critical ratios of A–X and B–X bond lengths, resulting in different perovskite structure types observed at higher temperatures. Additionally, a simplified empirical model has been developed for the relationship between the bond valence and the thermal expansion rate of chemical bonds. | uk |
dc.language.iso | uk | uk |
dc.publisher | ДВНЗ "Ужгородський національний університет" | uk |
dc.subject | structural chemistry | uk |
dc.subject | crystal chemistry | uk |
dc.subject | perovskites | uk |
dc.subject | phase transitions | uk |
dc.subject | bond valence model | uk |
dc.title | Температурно-індуковані фазові переходи структур перовскітів: модель зв’язкової валентності | uk |
dc.title.alternative | Temperature-induced phase transitions of perovskite structures: the bond valence model | uk |
dc.type | Text | uk |
dc.pubType | Стаття | uk |
Appears in Collections: | Науковий вісник УжНУ Серія: Хімія Випуск 2(38) - 2017 Наукові публікації НДІ фізики і хімії твердого тіла |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
visnyk_2017__38__11_13.pdf | 130.67 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.