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Nanoscale element behavior in a continuum
Journal of Synchrotron Radiation ( IF 2.5 ) Pub Date : 2020-06-09 , DOI: 10.1107/s1600577520006682
Sungsook Ahn , Sang Joon Lee

Patterns in materials are not just decoration but also important for function. In view of this, the dynamics of patterning procedures in materials has been investigated as an important developmental procedure. In this study, nanoscale components in a continuum are traced in terms of natural patterning procedures. Externally applied compressive or extensive forces to an elastic thin sheet commonly induce an orientated lateral line pattern. From a nanoscale element point of view, the dynamics of natural arrangements, forming anisotropic patterns in preference to isotropy, still remains unclear. In this study, new developmental procedures for line patterns are suggested by stimuli‐responsive viscoelastic nanocomposite network model systems. Forces originating from an internal source without directional orientation generate lines in preference to isotropic patterns. With repeated, non‐oriented (or isotropic) and self‐modulated strain variations, stress is accumulated to drive anisotropic orientations and further lines. The anisotropic elemental arrangement is justified by the equilibrium between the short‐range attraction and long‐range repulsion from a bottom‐up viewpoint. This study suggests a new material design methodology that is useful for electrical devices, biomedical devices and other patterned soft condensed matter in conjunction with line patterns typically generated in a broad range of viscoelastic materials.

中文翻译:

连续体中的纳米级元素行为

材料中的图案不仅是装饰,而且对功能也很重要。鉴于此,已经研究了材料中构图程序的动力学作为重要的开发程序。在这项研究中,连续体中的纳米级成分是根据自然图案形成过程进行追踪的。外部施加到弹性薄片上的压缩力或广泛力通常会引起定向的侧线图案。从纳米级元素的角度来看,自然形成的动力学(各向异性优先于各向同性)仍然是不清楚的。在这项研究中,线响应的粘弹性纳米复合网络模型系统提出了新的线型开发程序。来自内部源且没有方向性取向的力优先于各向同性模式生成线。随着反复的,非定向的(或各向同性的)和自调制的应变变化,应力被累积以驱动各向异性的定向和进一步的走向。从自下而上的角度来看,各向异性元素的排列是通过短程吸引与远程排斥之间的平衡来证明的。这项研究提出了一种新的材料设计方法,该方法可用于电气设备,生物医学设备和其他带图案的软冷凝物,以及通常在多种粘弹性材料中产生的线形图案。应力累积以驱动各向异性取向和更多的线。从自下而上的角度来看,各向异性元素的排列是通过短程吸引与远程排斥之间的平衡来证明的。这项研究提出了一种新的材料设计方法,该方法可用于电气设备,生物医学设备和其他带图案的软冷凝物,以及通常在多种粘弹性材料中产生的线形图案。应力累积以驱动各向异性取向和更多的线。从自下而上的角度来看,各向异性元素的排列是通过短程吸引与远程排斥之间的平衡来证明的。这项研究提出了一种新的材料设计方法,该方法可用于电气设备,生物医学设备和其他带图案的软冷凝物,以及通常在多种粘弹性材料中产生的线形图案。
更新日期:2020-06-09
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