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The friction and wear of ceramic/ceramic and ceramic/metal combinations in sliding contracts

Journal Article · · Lubrication Engineering
OSTI ID:191826
;  [1]
  1. NASA Lewis Research Center, Cleveland, OH (United States)
The tribological characteristics of ceramics sliding on ceramics are compared to those of ceramics sliding on a nickel-based turbine alloy. The friction and wear of oxide ceramics and silicon-based ceramics in air at temperatures from room ambient to 900{degrees}C (in a few cases to 1200{degrees}C) were measured for a hemispherically-tipped pin on a flat sliding contract geometry. In general, especially at high temperature, friction and wear were lower for ceramic/metal combinations than for ceramic/ceramic combinations. The better tribological performance for ceramic/metal combinations is attributed primarily to the lubricious nature of the oxidized surface of the metal. 12 refs., 6 figs., 1 tab.
OSTI ID:
191826
Journal Information:
Lubrication Engineering, Journal Name: Lubrication Engineering Journal Issue: 7 Vol. 50; ISSN LUENAG; ISSN 0024-7154
Country of Publication:
United States
Language:
English

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