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Development of Textures in Nematic and Smectic (Ferro-Electric) Rubbers

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Liquid crystalline elastomers can spontaneously deform by 100% as they lose and regain their order by heating or by illumination. They can also deform, by rotating their order, at low energy cost in response to applied stress at constant temperature. They form textures on deformation if their low cost shapes are incommensurate with boundaries. Their ferro-electric forms are also likely to deform via textures, for instance as their polarisation is switched by mechanical fields. I shall subject these exotic rubbers to temperature change during the lecture.

This talk is part of the Surfaces, Microstructure and Fracture Group series.

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