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T − p phase diagrams and barocaloric effect in materials with successive phase transitions
Автор | Gorev, Mikhail V | |
Автор | Bogdanov, Evgeniy V | |
Автор | Flerov, Igor N | |
Дата внесения | 2018-02-07T07:32:04Z | |
Дата, когда ресурс стал доступен | 2018-02-07T07:32:04Z | |
Дата публикации | 2017-08 | |
Библиографическое описание | Gorev, Mikhail V. T − p phase diagrams and barocaloric effect in materials with successive phase transitions [Текст] / Mikhail V Gorev, Evgeniy V Bogdanov, Igor N Flerov // Journal of Physics D: Applied Physics. — 2017. — Т. 50 (№ 38). — С. 384002 (10pp) | |
ISSN | 00223727 | |
URI (для ссылок/цитирований) | http://iopscience.iop.org/article/10.1088/1361-6463/aa8025 | |
URI (для ссылок/цитирований) | https://elib.sfu-kras.ru/handle/2311/70090 | |
Описание | Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала. | |
Аннотация | Abstract An analysis of the extensive and intensive barocaloric effect (BCE) at the successive structural phase transitions in some complex fluorides and oxyfluorides was performed. A high sensitivity of these compounds to a change of the chemical pressure allows one to vary successions and parameters of the transformations (temperature, entropy, baric coefficient) in wide ranges and obtain the optimal values of BCE. A comparison of different types of the schematic T − p phase diagrams with the complicated T(p) dependences observed experimentally shows that in some ranges of temperature and pressure BCE in compounds undergoing successive transformations can be increased due to summation of caloric effects associated with the distinct phase transitions. The maximum values of the extensive and intensive BCE in complex fluorides and oxyfluorides can be realized at rather low pressure, 0.1 – 0.3 GPa. In narrow temperature range around triple points the conversion from the conventional BCE to the inverse one is observed which is followed by gigantic change of both |∆SBCE| and |∆TAD|. | |
Тема | barocaloric effect | |
Тема | phase transition | |
Тема | phase diagram | |
Тема | entropy | |
Название | T − p phase diagrams and barocaloric effect in materials with successive phase transitions | |
Тип | Journal Article | |
Тип | Journal Article Preprint | |
Страницы | 384002 (10pp) | |
ГРНТИ | 29.19.09 | |
Дата обновления | 2018-02-07T07:32:04Z | |
DOI | 10.1088/1361-6463/aa8025 | |
Институт | Институт инженерной физики и радиоэлектроники | |
Подразделение | Кафедра теплофизики | |
Журнал | Journal of Physics D: Applied Physics | |
Квартиль журнала в Scopus | Q1 | |
Квартиль журнала в Web of Science | Q2 |