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Михалева, Е. А.
Флёров, И. Н.
Горев, М. В.
Бондарев, В. С.
Богданов, Е. В.
2021-08-13T09:31:38Z
2021-08-13T09:31:38Z
2020-01
Михалева, Е. А. Features of the Behavior of the Barocaloric Effect near Ferroelectric Phase Transition Close to the Tricritical Point [Текст] / Е. А. Михалева, И. Н. Флёров, М. В. Горев, В. С. Бондарев, Е. В. Богданов // Crystals. — 2020. — Т. 10 (№ 1).
20734352
https://www.mdpi.com/2073-4352/10/1/51
https://elib.sfu-kras.ru/handle/2311/142599
A detailed study of the effect of temperature and pressure on heat capacity, entropy and hysteresis phenomena near the ferroelectric phase transition in ammonium sulfate (AS) was performed. An analysis of experimental results within the framework of the phenomenological theory showed that taking into account the temperature-dependent part of the anomalous entropy leads to a significant increase in the barocaloric effect (BCE). The maximum values of extensive and intensive BCE near the tricritical point are outstanding: DSmaxBCE ~ 85 J/kgK, DTmaxAD ~ 12 K and can be achieved at low pressure ~0.5 GPa.
polymorphic phase transformation
phase diagram
order–disorder phenomena
entropy
barocaloric effect
Features of the Behavior of the Barocaloric Effect near Ferroelectric Phase Transition Close to the Tricritical Point
Journal Article
Journal Article Preprint
2021-08-13T09:31:38Z
10.3390/cryst10010051
Институт инженерной физики и радиоэлектроники
Кафедра теплофизики
Базовая кафедра физики твердого тела и нанотехнологий
Crystals
Q2
Q2


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