Premium
Superelastic Shape Recovery of Mechanically Twinned 3,5‐Difluorobenzoic Acid Crystals
Author(s) -
Takamizawa Satoshi,
Takasaki Yuichi
Publication year - 2015
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201411447
Subject(s) - crystal twinning , pseudoelasticity , materials science , distortion (music) , crystallography , shape memory alloy , composite material , chemistry , optoelectronics , microstructure , amplifier , cmos , martensite
Generally, superelastic behavior cannot be expected in mechanically twinned crystals because there is essentially no strain on the interface that is a driving force for spontaneous shape recovery. However, we found that single crystals of 3,5‐difluorobenzoic acid are superelastic organic crystals under mechanical twinning. The unexpected shape recovery can be explained by molecular distortion on the twinning interface, which suggests a new mechanism for superelasticity in molecular materials.