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X-Ray Fluorescence Analysis of Wear Metals in Used Lubricating Oils*

Published online by Cambridge University Press:  06 March 2019

William E. Maddox  and
Warren G. Kelliher
William E. Maddox
Affiliation:
Murray State University Murray, Kentucky
Warren G. Kelliher
Affiliation:
NASA Langley Research Center Hampton, Virginia
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Extract

Analyses of lubricating oils from aircraft engines, gear boxes and other lubricated mechanisms have been routinely performed by the military since the 1960's. The monitoring of the wear metal concentrations in the oil can lead to an early detection of abnormal wear and, consequently, the prevention of a malfunction or a complete failure of the aircraft. At the present time, almost all the analysis programs use atomic emission (AES) and/or atomic absorption (AAS) spectroscopy to determine elemental concentrations in the oils (1). These types of analysis require the close support of a laboratory to minimize the delays in obtaining the results of the measurements. The AES and AAS methods are very inefficient for particles 3 - 6 μm in size and are essentially blind to particles larger than 6 - 10 μm (2,3).

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 29: Thirty-Fourth Annual Conference on Applications of X-ray Analysis, August 5-9, 1985 , 1985 , pp. 497 - 502
Copyright
Copyright © International Centre for Diffraction Data 1985

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Footnotes

*

Work supported by NASA Contract HCC1 - 92.

References

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