Counterface effects on the tribological properties of polyimide composites

Journal Article · Sat Nov 01 04:00:00 EST 1986 · Lubr. Eng.; (United States)

OSTI ID:6489826

Fusaro, R L

Graphite fiber reinforced polyimide composite pins were slid against seven different counterfaces to determine the effect of material type on the tribological properties of polymer composites. In addition, the effect of sliding a new pin on a pre-established transfer film was investigated. The results indicated that almost a five order of magnitude difference in composite wear rate can occur just by varying the counterface material. An attempt to make all surfaces as smooth as possible was made, but due to differences in material composition this was not possible and a range of surface roughnesses were obtained. The results indicate that the smoother the surface, the lower the composite wear rate; but that small protrusions (not discernible with arithmetic surface roughness measurements) can markedly increase wear rates. A pre-established transfer film improved both run in and steady state wear rates. 25 references.

• Research Organization: NASA, Lewis Research Center, Cleveland, OH
• OSTI ID: 6489826
• Journal Information: Lubr. Eng.; (United States), Journal Name: Lubr. Eng.; (United States) Vol. 42; ISSN LUENA
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320302 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Materials
36 MATERIALS SCIENCE
360603* -- Materials-- Properties
CARBON FIBERS
COMPOSITE MATERIALS
FIBERS
FRICTION
LUBRICANTS
MATERIALS
POLYMERS
REINFORCED MATERIALS
ROUGHNESS
SLIDING FRICTION
SOLID LUBRICANTS
SURFACE PROPERTIES
TRIBOLOGY
WEAR