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Photoelastic colloidal gel for a high-sensitivity strain sensor

机译:用于高灵敏度应变传感器的光弹性胶体凝胶

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摘要

Nanoparticles, having the ability to self-assemble into an ordered structure in their suspensions, analogous to liquid crystals, have attracted extensive attention. Herein, we report a new type of colloidal gel with an ordered crystal structure assembled from 1D and 2D nanoparticles. The material has high elasticity and, more interestingly, it shows significant photoelasticity. Its refractive index can be tuned under external stress and exhibits an ultra-wide dynamic range (Delta n) of the order of 10(-2). Due to the large Delta n, the material shows an extremely high strain sensibility of 720 nm/epsilon, an order of magnitude higher than the reported ones.
机译:纳米颗粒具有自组装成悬浮液中的有序结构的能力,类似于液晶,引起了广泛的关注。 这里,我们报告了一种新型的胶体凝胶,其具有由1D和2D纳米颗粒组装的有序晶体结构。 该材料具有高弹性,更有趣的是,它显示出显着的光弹性。 其折射率可以在外部应力下调谐,并且呈现出10(-2)的超宽动态范围(ΔN)。 由于达到大的δn,该材料显示出720nm / epsilon的极高应变感性,比报告的阶数高。

著录项

  • 来源
    《Nanotechnology》 |2018年第17期|共8页
  • 作者单位

    Shanghai Jiao Tong Univ Sch Mat Sci &

    Engn State Key Lab Met Matrix Composites Shanghai 200240 Peoples R China;

    Univ Wollongong Engn Mat Inst Wollongong NSW 2522 Australia;

    Shanghai Jiao Tong Univ Sch Mat Sci &

    Engn State Key Lab Met Matrix Composites Shanghai 200240 Peoples R China;

    Shanghai Jiao Tong Univ Dept Elect Engn State Key Lab Adv Opt Commun Syst &

    Networks Shanghai 200240 Peoples R China;

    Shanghai Jiao Tong Univ Sch Mat Sci &

    Engn State Key Lab Met Matrix Composites Shanghai 200240 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 特种结构材料;
  • 关键词

    photoelastic; colloidal gel; high elasticity; tunable refractive index; strain sensor;

    机译:光弹性;胶体凝胶;高弹性;可调折射率;应变传感器;

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