RADIATION-RESISTANT GREASES--A STUDY OF THICKENERS AND ANTIRADS

Journal Article · Tue Aug 01 04:00:00 EDT 1961 · J. Inst. Petrol.

OSTI ID:4760872

Crawford, W; Cox, D B

The suitability of various non-soap thickeners in the compounding of greases stable to ionizing radiation is discussed on the basis of static irradiation data. Thickeners assessed include modified clays and silicas, a dye pigment, an aryl urea, and magnesium n-octadecyl terephthalamate. Side effects due to fluid polymerization are defined by the use of lubricating fluids of differing radiation stabilities, each thickener being used in conjunction with an alkyl phenyl silicone, a refined petroleum bright stock, and/or a synthetic aromatic, respectively. Additives are described which act as energy absorbers'' or free radical scavengers.'' These materials, antirads,'' are shown to boost the radiation stability of a modified clay/silicone fiuid grease by up to 1000 megarads. Facilities for the simultaneous irradiation and bearing rig testing of greases are described. It is shown that the interaction of grease composition, method of test irradiation, and method of damage evaluation are complex, and that development of radiationresistant greases for different environments requires understanding of this interaction. (auth)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-17-012395
• OSTI ID: 4760872
• Journal Information: J. Inst. Petrol., Journal Name: J. Inst. Petrol. Vol. Vol: 47
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
COATING
ENGINEERING AND EQUIPMENT
FREE RADICALS
GREASES
IRRADIATION
LUBRICANTS
LUBRICATION
ORGANIC COMPOUNDS
PETROLEUM
POLYMERS
RADIATION DOSES
RADIATION EFFECTS
RADIATION PROTECTION
SHIELDING
SILICON
TESTING