A friction force microscope employing laser beam deflectionfor force detection

Nanotribology is now one of the most active research areas of tribology.Frictionforce microscopy(FFM),based on atomic force microscopy(AFM),is a method forstudying the feature of micro-friction of material surface with high resolution.So theFFM has received more attention and has been widely used in the area of nanotribology sinceit was developed.The latest results in the area of nanotribology are mostly obtained byusing AFM or FFM,which are the relationship between micro-scale friction force andslope of surface roughness,cyclicity of friction force on atomic scale,features ofmicro-wear,etc.However,there are many problems on how to employ AFM and