Features of the Behavior of the Barocaloric Effect near Ferroelectric Phase Transition Close to the Tricritical Point

被引：10

作者：

Mikhaleva, E. A. ^{[1
]}

Flerov, I. N. ^{[1
,2
]}

Gorev, M., V ^{[1
,2
]}

Bondarev, V. S. ^{[1
,2
]}

Bogdanov, E., V ^{[1
,3
]}

机构：

[1] Russian Acad Sci, Fed Res Ctr KSC, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia

[2] Siberian Fed Univ, Inst Engn Phys & Radioelect, Krasnoyarsk 660074, Russia

[3] Krasnoyarsk State Agr Univ, Inst Engn Syst & Energy, Krasnoyarsk 660049, Russia

来源：

CRYSTALS | 2020年 / 10卷 / 01期

基金：

俄罗斯科学基金会;

关键词：

polymorphic phase transformation; phase diagram; order-disorder phenomena; entropy; barocaloric effect; TEMPERATURE-RANGE; HEAT-CAPACITY;

D O I：

10.3390/cryst10010051

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

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: Delta S-BCE(max) approximate to 85 J/kgK, Delta T-AD(max) approximate to 12 K and can be achieved at low pressure similar to 0.5 GPa.

引用

页数：9

共 28 条

[21] Caloric characteristics of PbTiO3 in the temperature range of the ferroelectric phase transition [J].

Mikhaleva, E. A. ;

Flerov, I. N. ;

Gorev, M. V. ;

Molokeev, M. S. ;

Cherepakhin, A. V. ;

Kartashev, A. V. ;

Mikhashenok, N. V. ;

Sablina, K. A. .

PHYSICS OF THE SOLID STATE, 2012, 54 (09) :1832-1840

[22] Electrocaloric and Barocaloric Effects in Some Ferroelectric Hydrosulfates and Triglycinesulfate [J].

Mikhaleva, E. A. ;

Flerov, I. N. ;

Bondarev, V. S. ;

Gorev, M. V. ;

Vasiliev, A. D. ;

Davydova, T. N. .

FERROELECTRICS, 2012, 430 :78-83

[23]

Moya X, 2014, NAT MATER, V13, P439, DOI [10.1038/nmat3951, 10.1038/NMAT3951]

[24] ORDER-DISORDER TRANSITION IN FERROELECTRIC AMMONIUM SULFATE [J].

OREILLY, DE ;

TSANG, T .

JOURNAL OF CHEMICAL PHYSICS, 1969, 50 (05) :2274-&

[25] Electrocaloric cooling: The importance of electric-energy recovery and heat regeneration [J].

Plaznik, U. ;

Vrabelj, M. ;

Kutnjak, Z. ;

Malic, B. ;

Poredos, A. ;

Kitanovski, A. .

EPL, 2015, 111 (05)

[26]

ROMANYUK NA, 1988, UKR FIZ ZH+, V33, P1381

[27] Anomalous states of the structure of (NH4)2SO4 crystals in the temperature range 4.2-300 K [J].

Shmyt'ko, IM ;

Afonikova, NS ;

Torgashev, VI .

PHYSICS OF THE SOLID STATE, 2002, 44 (12) :2309-2317

[28] High-throughput search for caloric materials: the CaloriCool approach [J].

Zarkevich, N. A. ;

Johnson, D. D. ;

Pecharsky, V. K. .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2018, 51 (02)

← 1 2 3 →