Advanced Solid Lubricant Films by Ion-Beam Assisted Deposition.

reportActive / Technical Report | Accession Number: ADA288866 | Open PDF

Abstract:

NRL is developing advanced solid lubricating films for bearing assemblies. The films are deposited by ion-beam assisted deposition IBAD to thickness that can be controlled from 0.02 micrometers 1 micron inch to greater than or equal to 1 micrometer 40 microns inch. Unlike evaporated or sputter-deposited films, IBAD films are dense and adhere well to virtually all solid surfaces. Durable films have been deposited on bearing steels, Ti alloys and many ceramic substrates, including Si3N4, alumina, SiC, TiN and CVD diamond. IBADs multibeam capabilities have also been exploited to produce binary and ternary alloys over a wide range of stoichiometries. Studies of two solid lubricating films, MoS2 and ternary metal oxides, will be highlighted. IBAD MoS2 films exhibit reduced susceptibility to moisture degradation during storage. Alloyed MoS2 films show increased durability in sliding and rolling contact without sacrificing the ultra-low friction behavior of MoS2. For high temperatures, a class of binary metal oxide films are being investigated. Candidate lubricants have been chosen based on tribological behavior of oxide and predictions from thermodynamic phase diagrams. A recent study of the Cu-Mo-O system will be presented.

Author(s):
Singer, Irwin L. ; Bolster, Robert N. ; Seitzman, Larry E. ; Wahl, Kathryn J. ; Peterson, Marshall B.
Author Organization(s):
NAVAL RESEARCH LAB WASHINGTON DC
Pagination:
0012

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
NRL/MR/6170--94-7633
Monitor Series:
ONR
 Subject Terms
Joint Capability Areas:
JCA_4.2.3_Manage Global Supplier Networks; JCA_4.2_Supply; JCA_8_Building Partnerships
Modernization Areas:
Microelectronics
Communities of Interest:
Advanced Electronics
Descriptor(s):
*FILMS, *ION BEAMS, *SOLID LUBRICANTS, THICKNESS, ROLL, DEGRADATION, THERMODYNAMICS, HIGH TEMPERATURE, METAL FILMS, MOLYBDENUM, SUBSTRATES, ALLOYS, STEEL, REDUCTION, SURFACES, CERAMIC MATERIALS, DEPOSITION, OXIDES, ALUMINUM OXIDES, COPPER, TITANIUM, BEARINGS, STORAGE, EVAPORATION, RANGE(EXTREMES), TERNARY COMPOUNDS, MOISTURE, FRICTION, SPUTTERING, NITRIDES, LUBRICANTS, STOICHIOMETRY, SULFIDES, BINARY ALLOYS, METAL COMPOUNDS, MULTIPLE BEAMS(RADIATION), PHASE DIAGRAMS, SOLID BODIES, TRIBOLOGY, SLIDING, ANTIFRICTION BEARINGS
Field(s)/Group(s):
Lubricants and Hydraulic Fluids, Inorganic Chemistry, Particle Accelerators
Keyword(s):
IBAD(ION BEAM ASSISTED DEPOSITION), 63224C, 61153N, 2855, 3409, 14
Report Date:
1994 Nov 28