Mechanical switching of ferroelectric rubber.

Mechanical switching of ferroelectric rubber.
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铁电橡胶的机械开关。

DOI:
10.1103/physreve.79.061704
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发表时间:
2009
期刊:
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子:
--
通讯作者:
Adams JM
Adams JM
中科院分区:
--
文献类型:
--
作者:
Adams JM

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近晶弹性体在相变时会发生自发的剪切应变.我们首先明确地描述了如何高达两倍的这个值的应变可以是机械或电诱导在Sm-弹性体的层法线与弹性成本依赖于约束的圆锥体上的董事的旋转。其次,对于典型的样品的几何形状,我们给出了各种微观结构的Sm-类似于那些看到的弹性体变形与约束。这是可能的,以明确的结果的性质的纹理。手性钐弹性体是铁电体。我们计算如何极化可以机械逆转的大,硬,或软应变的橡胶取决于样品的几何形状。
At thetotransition, smectic elastomers have recently been observed to undergospontaneous shear strains. We first explicitly describe how strains of up to twice this value could be mechanically or electrically induced in Sm-elastomers by rotation of the director on a cone around the layer normal with an elastic cost dependent on constraints. Second, for typical sample geometries, we give the various microstructures in Sm-akin to those seen in nematic elastomers under distortions with constraints. It is possible to give explicit results for the nature of the textures. Chiral Sm-elastomers are ferroelectric. We calculate how the polarization could be mechanically reversed by large, hard, or soft strains of the rubber depending upon sample geometry.
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影响因子: --
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