Application of XAFS in Tribology : P and S L-Edge XANES Spectroscopy of Antiwear Films
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چکیده
Antiwear additives are added to engine oils in the form of Zinc dialkyl dithiophosphates (ZDDPs). They form an antiwear (bibochemical) film on the rubbing surfaces. High resolution P and S L-edge X-ray absorption near edge (XANES) spectroscopy has been used to characterize the chemical nature of the films formed under air and inert atmosphere. The total electron yield and fluorescence yield detection methods have been employed to investigate the near surface and bulk composition of the films.
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تاریخ انتشار 2017