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