Accession Number : AD0724975

Title :   Investigation of the Efficiency of the VNII NP-213 Solid Lubricating Coating,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Kurilov,G. V. ; Sentyurikhina,L. N. ; Lyubarskii,I. M. ; Udovenko,V. F.

Report Date : 27 JAN 1971

Pagination or Media Count : 14

Abstract : The report gives experimental investigations of the service life and friction coefficient of a solid lubricating coating (not further specified, but appearing to contain molybdenum disulfide and silicon) as a function of the load, sliding rate and vacuum level. Tests were performed with a film (20 microns) deposited on the surfaces of a sliding contact at a pressure of 2 atm. The efficiency of the coating at high-temperatures in air was also studied. It was found that the friction coefficient decreases with increasing load both in dry and humid air and in vacuum. At high sliding rates and high loads, the temperature and friction coefficient increase and the service life decreases. In vacuum, the service life is 4 to 6 hr at a relative humidity of 50 to 70 percent and 13 to 14 hr in dry air. (Author)

Descriptors :   (*LUBRICANTS, EFFICIENCY), TEST METHODS, SILICON, MOLYBDENUM COMPOUNDS, SULFIDES, FRICTION, HUMIDITY, VACUUM, USSR

Subject Categories : Lubricants and Hydraulic Fluids

Distribution Statement : APPROVED FOR PUBLIC RELEASE