Accession Number : ADA212407

Title :   Structural Studies of Sputter-Deposited MoS2 Solid Lubricant Films.

Descriptive Note : Technical rept.,

Corporate Author : AEROSPACE CORP EL SEGUNDO CA CHEMISTRY AND PHYSICS LAB

Personal Author(s) : Hilton, Michael R ; Fleischauer, Paul D

PDF Url : ADA212407

Report Date : 11 Sep 1989

Pagination or Media Count : 24

Abstract : The relationship between the morphologies and crystal structures of sputter-deposited MoS2 films and their lubricating capabilities is discussed. In particular, aspects of plastic deformation processes are presented. Scanning electron microscopy (top surface and cross sectional), transmission electron microscopy (lattice imaging and dark field), and x-ray diffraction techniques were used to characterize film structure. The as-deposited morphology, which can be described in terms of zone models, was found to influence the initial nature of the wear debris and the load-bearing capabilities of the films. In many cases a highly deformed region confined to the films was found. Applied stress was found to reorient crystallites and to induce crystallization, with the degree of both processes being related to the initial structure of the film. Criteria are presented for selecting the film type and preparation conditions to fit various application. Keywords: Lubricant films; Molybdenum disulfide; Solid lubricants; Tribology. (KT)

Descriptors :   *MOLYBDENUM COMPOUNDS, *SOLID LUBRICANTS, *SULFIDES, *TRIBOLOGY, CRYSTAL STRUCTURE, CRYSTALLIZATION, DARKNESS, DEBRIS, DEFORMATION, ELECTRON MICROSCOPY, ELECTRONIC SCANNERS, FILMS, LOADS(FORCES), LUBRICATING FILMS, LUBRICATION, MODELS, PLASTIC DEFORMATION, REGIONS, STRESSES, STRUCTURAL PROPERTIES, TRANSMITTANCE, WEAR, X RAY DIFFRACTION

Subject Categories : Lubricants and Hydraulic Fluids

Distribution Statement : APPROVED FOR PUBLIC RELEASE