Since the late 1970's, the wet lubricant of choice for space mechanisms has been one of the family of synthetic perfluoro polyalkylether (PFPE) compounds, namely Fomblin Z-25 (Bray-815Z) or DuPont's Krytox 143xx series. While offering the advantages of extremely low vapor pressures and wide temperature ranges, these oils and derived greases have a complex chemistry compared to the more familiar natural and synthetic hydrocarbons. Many aerospace companies have conducted test programs to characterize the behavior of these compounds in a space environment, resulting in a large body of hard knowledge as well as considerable space lore concerning the suitability of the lubricants for particular applications and techniques for successful application. The facts are summarized and a few myths about the compounds are dispelled, and some performance guidelines for the mechanism design engineer are provided.
Experience with synthetic fluorinated fluid lubricants
01.04.1990
Aufsatz (Konferenz)
Keine Angabe
Englisch
Air force experience with synthetic gas turbine lubricants
Engineering Index Backfile | 1955
|AIR FORCE EXPERIENCE WITH SYNTHETIC GAS TURBINE LUBRICANTS
SAE Technical Papers | 1955
|Experience with synthetic lubricants in aircraft power plants
Engineering Index Backfile | 1954
|EXPERIENCE WITH SYNTHETIC LUBRICANTS IN AIRCRAFT POWER PLANTS
SAE Technical Papers | 1954
|Recent experience with synthetic hydrocarbon lubricants for spacecraft applications
British Library Online Contents | 1995
|