Shape-memory effects in molecular crystals

被引:0
|
作者
Ejaz Ahmed
Durga Prasad Karothu
Mark Warren
Panče Naumov
机构
[1] New York University Abu Dhabi,Radcliffe Institute for Advanced Study
[2] Diamond Light Source,undefined
[3] Harvard University,undefined
来源
Nature Communications | / 10卷
关键词
D O I
暂无
中图分类号
学科分类号
摘要
Molecular crystals can be bent elastically by expansion or plastically by delamination into slabs that glide along slip planes. Here we report that upon bending, terephthalic acid crystals can undergo a mechanically induced phase transition without delamination and their overall crystal integrity is retained. Such plastically bent crystals act as bimorphs and their phase uniformity can be recovered thermally by taking the crystal over the phase transition temperature. This recovers the original straight shape and the crystal can be bent by a reverse thermal treatment, resulting in shape memory effects akin of those observed with some metal alloys and polymers. We anticipate that similar memory and restorative effects are common for other molecular crystals having metastable polymorphs. The results demonstrate the advantage of using intermolecular interactions to accomplish mechanically adaptive properties with organic solids that bridge the gap between mesophasic and inorganic materials in the materials property space.
引用
收藏
相关论文
共 50 条
  • [21] Shaping shape-memory
    Anthamatten, Mitchell
    Cavicchi, Kevin
    JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 2016, 54 (14) : 1293 - 1294
  • [22] SHAPE-MEMORY PHENOMENA
    GOLESTANEH, AA
    PHYSICS TODAY, 1984, 37 (04) : 62 - &
  • [23] THE MECHANISMS OF SHAPE-MEMORY
    FRIEND, CM
    JOURNAL DE PHYSIQUE IV, 1991, 1 (C4): : 25 - 34
  • [24] Shape-memory micropumps
    Shu, YC
    MATERIALS TRANSACTIONS, 2002, 43 (05) : 1037 - 1044
  • [25] SHAPE-MEMORY ALLOYS
    SCHETKY, LM
    SCIENTIFIC AMERICAN, 1979, 241 (05) : 74 - 82
  • [26] SHAPE-MEMORY WIRES
    TUOMINEN, SM
    BIERMANN, RJ
    JOURNAL OF METALS, 1988, 40 (02): : 32 - 35
  • [27] SHAPE-MEMORY IN HYDROGELS
    OSADA, Y
    MATSUDA, A
    NATURE, 1995, 376 (6537) : 219 - 219
  • [28] Shape-Memory Microfluidics
    Balasubramanian, Aditya
    Morhard, Robert
    Bettinger, Christopher J.
    ADVANCED FUNCTIONAL MATERIALS, 2013, 23 (38) : 4832 - 4839
  • [29] Shape-memory polymers
    Behl, Marc
    Lendlein, Andreas
    MATERIALS TODAY, 2007, 10 (04) : 20 - 28
  • [30] Shape-memory polymers
    Lendlein, A
    Kelch, S
    ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2002, 41 (12) : 2034 - 2057