THE EFFECTS OF CAPILLARY FORCE IN MICRO OR NANO-INDENTATION

摘要：

Models describing wet adhesion between indenters and substrates joined by liquid bridges are investigated.The influences of indenter shapes and various parameters of structures on capillary force are focused.In the former,we consider several shapes,such as conical,spherical and truncated conical indenter with a spherical end.In the latter,the effects of the contact angle,the environmental humidity,the gap between the indenter and the substrate,etc.are included.Different dependences of the capillary force on the indenter shapes and the geometric parameters are observed.Most interesting finding is that applying the present results to micro-and nano-indentation experiments shows the size effect in indentation hardness not produced but underestimated by the effects of capillary force.

关键词： capillary force micro-and nano-indentation indenter shape humidity

作者: S.H.Chen C.H.Mi A.K.Soh

作者单位: LNM,Institute of Mechanics,Chinese Academy of Sciences,Beijing,100190,China Dept.of Mechanical Engineering,The University of Hong Kong,Hong Kong,China

会议类型: 国际会议

会议名称: 第二届国际非均质材料力学会议(The Second International Conference on Heterogeneous Material Mechanics)

会议地点: 安徽黄山

会议语种:英文

页码: 30

在线出版日期: 2008-06-03（万方平台首次上网日期，不代表论文的发表时间）