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Superelastic Organic Crystals
Author(s) -
Takamizawa Satoshi,
Miyamoto Yasuhiro
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201311014
Subject(s) - pseudoelasticity , materials science , alloy , strain energy , crystal (programming language) , metallurgy , composite material , microstructure , thermodynamics , physics , finite element method , computer science , programming language , martensite
Superelastic materials (crystal‐to‐crystal transformation pseudo elasticity) that consist of organic components have not been observed since superelasticity was discovered in a Au‐Cd alloy in 1932. Superelastic materials have been exclusively developed in metallic or inorganic covalent solids, as represented by Ti‐Ni alloys. Organosuperelasticity is now revealed in a pure organic crystal of terephthalamide, which precisely produces a large motion with high repetition and high energy storage efficiency. This process is driven by a small shear stress owing to the low density of strain energy related to the low lattice energy.