Abstract
Abstract To investigate the formation mechanism of bundle structures on polycarbonate (PC) surfaces, atomic force microscopy (AFM) was utilized to scratch a PC sheet. A theoretical model for the AFM tip, which accounted for the friction force exerted on the probe, was established to illustrate the torsion angle of the tip. The formation of bundle structures was determined by a critical friction force, and a stick-slip process was used to explain the formation mechanism. The influence of the scratching parameters, including the scratching angles, normal loads, velocities, and feed values, on the amplitude and wavelength of the bundle structures was studied. These results can provide guidance for the fabrication of higher quality bundle structures on a polymer sample surface.
Published Version
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