Morphological aspects of the friction of hot-filament-grown diamond thin films
Recent developments in chemical vapor deposition (CVD) technology have made it possible to produce thin diamond film on a variety of substrate materials. Diamond, having a very high hardness and low sliding friction coefficients, is a good candidate for tribological applications. Diamond films produced by a hot-filament CVD method often have irregular surfaces owning to the preferred growth mode of the crystals which form on the surface. This investigation using sapphire and bearing steel spherically tipped sliders demonstrated that the morphology of the diamond film surface produced friction coefficient up to ten times those observed in previous experiments which involved smooth diamond surfaces sliding against various solids in air. 12 refs., 8 figs., 1 tab.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 5846483
- Report Number(s):
- CONF-8909174-1; ON: DE89015986
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360601* -- Other Materials-- Preparation & Manufacture
CARBON
CHEMICAL COATING
CHEMICAL VAPOR DEPOSITION
CRYSTAL GROWTH
DEPOSITION
DIAMONDS
ELEMENTAL MINERALS
ELEMENTS
FILMS
FRICTION
HARDNESS
MECHANICAL PROPERTIES
MINERALS
MORPHOLOGY
NONMETALS
SUBSTRATES
SURFACE COATING
THIN FILMS
TRIBOLOGY