...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The European physical journal, E. Soft matter >Evolution of local wrinkles near defects on stiff film/compliant substrate
【24h】

Evolution of local wrinkles near defects on stiff film/compliant substrate

机译：封面薄膜/柔性基材缺陷附近的局部皱纹的演变

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Disordered wrinkles are widely observed in stiff film deposited onto a thermally expanded polymer when compressive stress exceeds the critical wrinkling stress of the film. Highly ordered wrinkles can be fabricated by introducing regularly arranged patterns on the polymer before deposition. However, the study on the morphological evolution of localized wrinkling patterns near defects on the stiff film/compliant substrate is neglected. In this paper, we show two morphological transitions of the local wrinkles induced by defects on an Au film/PDMS substrate. The observation shows that the straight wrinkles form perpendicularly to the line defects and the radial wrinkles form near spot-like defects. We observe that the extended radial wrinkles tend to split and evolve into branching patterns, this limits the deviation of the local wrinkle wavelength from the equilibrium wrinkle wavelength and causes the wrinkle wavelength to be always maintained in a narrow interval. Because the herringbone patterns have the minimum energy state, the straight and radial wrinkles evolve into herringbone wrinkles spontaneously. The morphological characteristic and evolution mechanism of the local wrinkles are described in detail. The observation may provide some clues to the formation and evolution of some localized wrinkling patterns in nature and multilayer materials.
机译：当压缩应力超过薄膜的临界皱纹应力时，在沉积在热膨胀的聚合物上的沉积到热膨胀的聚合物上的沉积物中广泛观察到无序的皱纹。通过在沉积之前通过在聚合物上引入定期布置的图案来制造高度有序的皱纹。然而，忽略了对抗膜/柔顺基材上的缺陷附近的局部皱纹图案的形态演化的研究。在本文中，我们展示了通过膜/ PDMS基板上的缺陷引起的局部皱纹的两种形态转变。该观察结果表明，直皱的垂直于线缺陷和径向皱纹形式的近斑缺陷。我们观察到延长的径向皱纹倾向于分开并发展成分支图案，这限制了局部皱纹波长从平衡皱纹波长的偏差，并使皱纹波长总是保持在狭窄的间隔中。因为人字形图案具有最小能量状态，所以直线和径向皱纹自发地进化成人字形皱纹。详细描述了局部皱纹的形态学特性和演化机制。观察可以向自然和多层材料中的一些局部皱纹图案的形成和演化提供一些线索。

著录项

  • 来源
  • 作者

    Sun Yi; Yan Liping; Li Chaorong; Chen Benyong;

  • 作者单位

    Zhejiang Sci Tech Univ Ctr Nanosci &

    Nanotechnol Hangzhou 310018 Zhejiang Peoples R China;

    Zhejiang Sci Tech Univ Ctr Nanosci &

    Nanotechnol Hangzhou 310018 Zhejiang Peoples R China;

    Zhejiang Sci Tech Univ Ctr Nanosci &

    Nanotechnol Hangzhou 310018 Zhejiang Peoples R China;

    Zhejiang Sci Tech Univ Ctr Nanosci &

    Nanotechnol Hangzhou 310018 Zhejiang Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 物理学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号