Ion-beam-assisted deposition of wear-resistant coatings
Chromium oxide coatings were deposited using the IBAD technique onto single crystal silicon substrates, with their friction and wear behavior being evaluated in sliding against either a 52100 steel ball or a silicon nitride ball. Microhardness tests resulted in values of approximately 1900 KHN for the coatings, 1300 KHN for bare silicon, and 750 for bare 52100. In sliding against the 52100 ball, no loss of material or deformation of the coating was observed. For sliding against the silicon nitride ball, in the absence of the coating a deep wear scar was observed on the silicon whereas with the coating, virtually no wear was detected, indicating almost complete protection. A new microwave ion source was interfaced with a UHV vacuum chamber, providing a new IBAD system. Several TiN coatings were produced and their mechanical properties are currently being evaluated.
- Research Organization:
- Naval Research Lab., Washington, DC (United States)
- Sponsoring Organization:
- DOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AI02-88CE90024
- OSTI ID:
- 6671708
- Report Number(s):
- DOE/CE/90024-7; ON: DE93011525
- Country of Publication:
- United States
- Language:
- English
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070205 -- Radiation Sources-- Industrial Applications
Radiation Processing-- (1987-)
36 MATERIALS SCIENCE
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
ARGON IONS
BEAMS
CHALCOGENIDES
CHARGED PARTICLES
CHROMIUM COMPOUNDS
CHROMIUM OXIDES
DEPOSITION
ENERGY RANGE
FRICTION
HARDNESS
ION BEAMS
IONS
KEV RANGE
KEV RANGE 01-10
MECHANICAL PROPERTIES
MICROHARDNESS
NITRIDES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PNICTIDES
SLIDING FRICTION
TITANIUM COMPOUNDS
TITANIUM NITRIDES
TRANSITION ELEMENT COMPOUNDS
WEAR