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Aligned regularly spaced ridges form immediately on scanning the surface of uniaxially oriented poly(ethylene terephthalate) (PET) at applied loads of greater than 15nN. This contrasts with nanowear of biaxially oriented PET film studied previously [B.D. Beake, et al., Polymer 42 (2001) 7025], which proceeds more slowly over a number of scan cycles by fatigue wear. Differences in nanowear are interpreted...
The basic principles behind friction force microscopy are described. Applications of friction force microscopy to self-assembled monolayers are reviewed. Work in the author's laboratory on the frictional properties of self-assembled monolayers is described, and the findings applied in the characterisation of a much more complex material, plasma-treated polyester. Friction force microscopy is found...
Repeated scanning of biaxially oriented poly(ethylene terephthalate) (PET) film surfaces in contact mode scanning force microscopy leads to sample wear. At low to moderate loads (<50nN) well-defined ridges are formed. The dimensions and the separation of these ridges are determined by the scan parameters. The ridge spacing and the root mean squared (rms) roughness of the surface increase with the...
Two types of biaxially oriented poly(ethylene terephthalate) film have been examined using scanning force microscopy (SFM). For Mylar D, a material containing silicate surface additives, non-contact-mode and single-scan contact-mode SFM were found to yield essentially similar topographical data. At elevated loads, contact-mode SFM results in the direct modification of sample topography. Ridged structures...
Biaxially oriented poly(ethylene terephthalate) films have been characterized using scanning force microscopy (SFM). Comparison of SFM topographical and SEM data revealed that the SFM provides superior lateral resolution and direct access to height data. Structural details absent from the SEM images were revealed by SFM, including radiating features observed around the silicate inclusions, tentatively...
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