Superelastic organic crystals
Superelastic organic crystals
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超弹性有机晶体
DOI：
10.1002/ange.201311014
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Y. Miyamoto
中科院分区：
文献类型：
--
作者：
S. Takamizawa;Y. Miyamoto
自1932年在Au-Cd合金中发现超弹性以来，还没有观察到由有机成分组成的超弹性材料（晶体到晶体的转变伪弹性）。超弹性材料专门在金属或无机共价固体中开发，如Ti-Ni合金。有机超弹性现在在一种纯的有机晶体中被揭示出来，它精确地产生了具有高重复性和高能量存储效率的大运动。由于与低晶格能相关的低应变能密度，该过程由小的剪切应力驱动。
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.