Published January 2021 | Version v1
Journal article Metadata-only

Comparative analysis of elastocaloric and barocaloric effects in single-crystal and ceramic ferroelectric (NH4)2SO4

Creators

  • 1. Kirensky Institute of Physics, Federal Research Center KSC SB RAS, 660036 Krasnoyarsk (Russian Federation)
  • 2. Institute of Engineering Physics and Radioelectronics, Siberian Federal University, 660074 Krasnoyarsk (Russian Federation)
  • 3. Institute of Engineering Systems and Energy, Krasnoyarsk State Agrarian University, 660049 Krasnoyarsk (Russian Federation)

Description

We report the influence of anisotropy and texture on elasto(ElCE)- and baro(BCE)-caloric effects in single-crystal and ceramic (NH4)2SO4. Inverse extensive and intensive ElCE in ceramics, (ΔSElCE)cer = 87 J/kg·K; ΔTAD = - 11.6 K), as well as in a single crystal along the ferroelectric axis a, (ΔSElCE)a = 115 J/kg·K; (ΔTAD)a = - 16 K, significantly exceed BCE, ΔSBCE = 75 J/kg·K; ΔTAD = - 9.8 K, even at low pressure ~ 0.3 GPa. Caloric parameters of ammonium sulphate are comparable with those for promising solid-state refrigerants.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.scriptamat.2020.09.030

Additional details

Identifiers

DOI
10.1016/j.scriptamat.2020.09.030;
PII
S1359646220306291;

Publishing Information

Journal Title
Scripta Materialia
Journal Volume
191
Journal Page Range
p. 149-154
ISSN
1359-6462
CODEN
SCMAF7

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
53120252
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
AMMONIUM SULFATES; ANISOTROPY; CERAMICS; COMPARATIVE EVALUATIONS; FERROELECTRIC MATERIALS; MONOCRYSTALS; PRESSURE RANGE PA; REFRIGERANTS; SOLIDS; TEXTURE
Descriptors DEC
AMMONIUM COMPOUNDS; CRYSTALS; DIELECTRIC MATERIALS; EVALUATION; FLUIDS; MATERIALS; OXYGEN COMPOUNDS; PRESSURE RANGE; SULFATES; SULFUR COMPOUNDS; WORKING FLUIDS

Optional Information

Copyright
Copyright (c) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.