Abstract
Raman scattering is utilized to investigate structural disorder in solid lubricant films. MoS 2 films used in tribological studies for aerospace applications may be prepared by pulsed laser deposition (PLD) or by ion sputter deposition. Raman scattering spectra were obtained on a set of standard MoS 2 compounds and a set of PLD films. These deposition processes incorporate changes into the crystallinity of the deposited films and the Raman data from these films were studied with a curve fitting program to analyze the defects generated by the PLD process. The curve fitting program shows that MoS 2 PLD films can be categorized by peak position, half-band width, integrated area and linear intensity measurements. The Raman data appear to be more sensitive to crystal order in the x− y symmetry plane than to order in the z axis of the crystal.
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