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Monitoring of Polyphenyl Ether Lubricants Using Fluorescence Spectroscopy

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Abstract:

Fluorescence spectroscopy has been investigated to determine its suitability for condition monitoring of oxidized polyphenyl ether lubricants. Oxidative degradation of the lubricant was shown to induce specific changes in its fluorescence properties. Excitation/emission wavelengths with monitoring potential were identified and were found to yield a useful correlation between emission intensity and viscosity increases of the degraded lubricant for two different formulations. Application of this technique on neat thin films of the degraded fluids yields similar correlations.

Keywords: Analysis for polyphenyl ether; Fluorescence

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702904085534

Affiliations: University of Dayton Research Institute, 300 College Park Drive, Dayton, Ohio 45469

Publication date: February 1, 1990

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