Scratches on film

Scratches on film

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Credit: DR JEREMY BURGESS/SCIENCE PHOTO LIBRARY

Caption: Scratches on lubricating film. Coloured scanning electron micrograph (SEM) of scratches on the surface of a lubricating film of molybdenum disulphide from a dry film anti-scuffing aerosol spray. The spray contains the lubricant, a volatile organic solvent and a small amount of bonding resin. The solvent quickly evaporates, leaving a layer of randomly-dried rings of molybdenum disulphide. These raised rings are gradually scratched and abraded with use, slowly smearing out to produce a thin film. Dry film lubricants have advantages over oils including not attracting dust and they can be used to higher temperatures. Magnification: x480 at 5x7cm size.

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Keywords: anti-scuffing, anti-scuffing film, chemical, chemistry, compound, compounds, film, lubricant, lubricating film, molybdenum disulphide film, molybdenum sulphide, scanning electron micrograph, scratch, scratches, sem

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