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Large elastic strain and elastocaloric effect caused by lattice softening in an iron-palladium alloy.


ABSTRACT: A Fe-31.2Pd (at.%) alloy exhibits a weak first-order martensitic transformation from a cubic structure to a tetragonal structure near 230 K. This transformation is associated with significant softening of elastic constant C'. Because of the softening, the alloy shows a large elastic strain of more than 6% in the [001] direction. In addition, the alloy has a critical point and shows a high elastocaloric effect in a wide temperature range for both the parent and the martensite phases.This article is part of the themed issue 'Taking the temperature of phase transitions in cool materials'.

SUBMITTER: Kakeshita T 

PROVIDER: S-EPMC4938071 | biostudies-other | 2016 Aug

REPOSITORIES: biostudies-other

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