FLUIDS, LUBRICANTS, FUELS AND RELATED MATERIALS

Technical Report · Sun Jan 01 04:00:00 EST 1961

OSTI ID:4076731

Klaus, E E; Fenske, M R; Tewksbury, E J

Work was carried out on a continuing program to characterize the capabilities of hydraulic fluids, lubricants, and functional fluids for aeronautic and astronautic applications under extreme environmental conditions. The effects of solvent type and solvent to oil ratio on the deep dewaxing process are shown. The yield and viscosity-temperature properties of the deep dewaxed oil are related to the type and degree of refining of the mineral oil fraction. The preparation of large volumes of super-refined mineral oil formulations for ""mock-up'' testing is reponted. Extensive technical liaison on processing, properties, and application is discussed. Physical and chemical stability of base stocks, additives, and finished hydraulic fluid and lubricant formulations after 5 to 17 years in storage is described. A sample of hydraulic fluid taken from the "Lady Be Good" B-25 Bomber after 16 years in the North African desert is discussed. The design, construction, and preliminary testing of a versatile capillary pressure viscometer is reported. The use of this viscometer to measure the effect of gas solubility on viscosity and the analysis of flow profile in a capillary viscometer are discussed. The use of the pressure unit with a modified Lipkin pycnometer for the measure of bulk modulus is suggested. The thermal stability of esters is contrasted and compared as a function of chemical structure. Quantitative evaluations of the gas produced and the liquid phase are used to illustrate the effect of metal catalysts. The effects of fluid type, viscosity, vapor pressure, oxidation mechanism, oxidation inhibitor, and gaseous environment on evaporation are presented. The use of evaporation tests in studying the mechanism of oxidation is suggested. The relative lubricity properties of a series of high-temperature-bearing materials are reported. The relative effects of fluid volatility on lubricity are discussed. The similarities between high-temperature and the lowtemperatare lubricity properties of the residual fluids after high-temperature oxidation and thermal tests are pointed out. The wear properties of mineral oils and esters with and without lubricity additives are compared and contrasted with silicons and silicate fluids at 167 to 700 deg F. A simple, versatile, quantitative oxidation test is described for use with a variety of high-temperature oxidation tests. (auth)

• Research Organization: Pennsylvania State Univ., University Park. Petroleum Refining Lab.
• NSA Number: NSA-15-013256
• OSTI ID: 4076731
• Report Number(s): WADD-TR-60-898
• Country of Publication: United States
• Language: English

Related Subjects

AIRCRAFT
CAPILLARIES
CATALYSIS
CONFIGURATION
ESTERS
EVAPORATION
FLUIDS
GASES
HYDRAULICS
LATTICES
LIQUIDS
LUBRICANTS
LUBRICATION
MATERIALS TESTING
MEASURED VALUES
METALS
METALS, CERAMICS, AND OTHER MATERIALS
OILS
OXIDATION
PRESSURE
SILICATES
SILICONES
SOLUBILITY
SOLVENTS
SPACE VEHICLES
STABILITY
STORAGE
TEMPERATURE
VAPORS
VISCOSITY
VOLATILITY
WEAR