Accession Number : AD0711476

Title :   OXIDATION OF LITHIUM GREASES,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Fuks,I. G. ; Uvarova,E. M.

Report Date : 17 NOV 1969

Pagination or Media Count : 12

Abstract : One of the most important properties of greases is their chemical stability. A study was launched on the effect of grease composition on oxidizability and changes in lubricant structure and properties from thoroughness of oxidation. The study was limited to consideration of the chemical stability of non-inhibited products. It was found that lithium greases oxidized under a quartz lamp for 8 to 32 hr (thin layer at increased temperature) act similarly to oils and all factors accelerating oxidation of oil, such as ultraviolet radiation, copper catalysis, temperature and duration of use are analogous for greases. Lithium soaps essentially influence the oxidation of oils and the catalytic action of the thickener depends on its concentration and the chemical nature of the oil. Oxidation of lithium greases is accompanied by decrease in stability and drop point, and greater volatility. (Author)

Descriptors :   (*LUBRICANTS, *LITHIUM COMPOUNDS), (*OXIDATION, LUBRICANTS), INFRARED SPECTROSCOPY, GREASES, THERMAL STABILITY, ESTERS, USSR

Subject Categories : Organic Chemistry
      Lubricants and Hydraulic Fluids

Distribution Statement : APPROVED FOR PUBLIC RELEASE