Wear Behavior of an Air-Drying Methyl Phenyl Silicone Bonded Molybdenum Disulfide Lubricating Film.
Technical rept. Feb 67-Dec 69,
AIR FORCE MATERIALS LAB WRIGHT-PATTERSON AFB OH
Pagination or Media Count:
A bonded solid-film lubricant has been synthesized based on MoS2 and Sb2O3 as the lubricating pigment and an air-cured silicone-resin system as the binder. The proportions of each material in the final composition were found to be important but did have fairly generous ranges. The ratio of pigment MoS2Sb2O3 to cured silicone resin can be varied between 5050 and 8515 by volume while approximately equal amounts by weight of the MoS2 and Sb2O3 appear to give the best results. A near-optimum composition with a lubricant to binder ratio of 7030 and a MoS2 to Sb2O3 ratio of 32 was selected for most of the wear testing. This mixture was designated AFSL-41. The AFSL-41 material combination exhibited excellent wear and friction characteristics in unidirectional motion at temperatures to 700F and in fretting mode at more modest temperatures. The material also has the unique ability to perform well on titanium surfaces in addition to the more conventional steel alloys. The lubrication of titanium remains a critical problem and the capability of AFSL-41 in this area is considered a valuable asset. Author
- Lubricants and Hydraulic Fluids