Barocaloric effect in ferroelastic fluorides and oxyfluorides

Using the data about the temperature - pressure phase diagram and the phase transition entropy at ambient and high pressure, intensive and extensive barocaloric effects were analyzed in the region of single and successive order-disorder phase transitions in fluorides and oxyfluorides with the elpaso...

Full description

Saved in:
Bibliographic Details
Published in:Ferroelectrics 2016-08, Vol.500 (1), p.153-163
Main Authors: Flerov, I. N., Gorev, M. V., Bogdanov, E. V., Laptash, N. M.
Format: Article
Language:English
Subjects:
Atomic structure
barocaloric effect
Entropy
Ferroelectric materials
Fluorides
Hydrostatics
Oxyfluorides
Phase diagrams
Phase transformations
Phase transition
Phase transitions
thermal properties
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Using the data about the temperature - pressure phase diagram and the phase transition entropy at ambient and high pressure, intensive and extensive barocaloric effects were analyzed in the region of single and successive order-disorder phase transitions in fluorides and oxyfluorides with the elpasolites-cryolite structure. It was found that hydrostatic as well as chemical pressure are the effective tools to change the entropy of compounds with disordered ionic groups or atoms in structure and to realize the significant intensive and extensive barocaloric effects comparable with the values of baro- and magnetocaloric effects, characteristic for materials, considered as promising solid refrigerants.
ISSN:0015-0193
1563-5112
DOI:10.1080/00150193.2016.1214525