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Difference between revisions of "Electrocaloric effect"

From Online Dictionary of Crystallography

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<Font color="blue"> Effet électrocalorifique </Font> (''Fr'').  
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<Font color="blue"> Effet électrocalorique </Font> (''Fr''). <Font color="black"> Effetto electrocalorico </Font> (''It'').  
  
 
== Definition ==
 
== Definition ==

Revision as of 12:45, 15 April 2015

Effet électrocalorique (Fr). Effetto electrocalorico (It).

Definition

The electrocaloric effect is the converse of the pyroelectric effect: it describes the variation of entropy δσ of a material submitted to an applied electrical field Ei :

δσ = piT Ei

where piT is the electrocaloric coefficient at constant stress. It is equal to the pyroelectric coefficient.

See pyroelectricity

See also

An introduction to crystal physics (Teaching Pamphlet of the International Union of Crystallography)
Section 10.2 of International Tables of Crystallography, Volume A
Section 1.1.4 and part 3 of International Tables of Crystallography, Volume D