上海交通大学学报(自然版) ›› 2011, Vol. 45 ›› Issue (10): 1485-1488.

• 物理学 • 上一篇    下一篇

基于原子力显微镜的薄膜涂层界面观测及其变形特性

刘畅,许金泉,孟祥琦,李晨   

  1. (上海交通大学 船舶海洋与建筑工程学院,上海 200240)
  • 收稿日期:2010-10-14 出版日期:2011-10-31 发布日期:2011-10-31

Analysis of Interface Macrostructure of Thin Coating Material and Its Related Elastic Mechanical Behavior Based on AFM

 LIU  Chang, XU  Jin-Quan, MENG  Xiang-Qi, LI  Chen   

  1. (School of Naval Architecture, Ocean and Civil Engineering,Shanghai Jiaotong University, Shanghai 200240, China)
  • Received:2010-10-14 Online:2011-10-31 Published:2011-10-31

摘要: 提出了一种基于原子力显微镜的纳米材料弹性模量的测试方法,并应用原子力显微镜对薄膜涂层材料界面微观结构进行高倍观察,定量分析界面相的存在对界面弹性变形的影响.研究结果表明,实验样品为柔性界面;界面相具有晶界型纳米相的微观分布,该微观结构有助于缓解并阻止裂纹的产生,从而增强了纳米涂层材料的承载能力.从微观尺度上探索了界面相效应对材料弹性变形的影响.

关键词: 原子力显微镜, 薄膜涂层, 界面, 微观结构, 弹性模量

Abstract: An elastic modulus test method of nano-materials was proposed based on atomic force microscopy (AFM). AFM was also used as a tool to observe the interface microstructure of a thin coating material and a quantitative analysis of the elastic deformation was made as a result of the presence of interface phase. The research results show that the sample here has flexible interface. The microstructure distribution of the interface phase is classified as grain-boundary nano-phase, and this kind of microstructure helps to alleviate and prevent cracks, thus increasing the carrying capacity of nano coating materials. The focus is to explore how the interface microstructures influence the coating material elastic deformation.
 

Key words: atomic force microscope (AFM), thin coating material, interface, microstructure, elastic modulus

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