Material and Lubricant Relationships in the Tribology of Internal Combustion Engines

  • C. S. Yust


Ceramics are being introduced into production engines for both wear resistance and inertial response, as well as for thermal barrier and elevated temperature capability. The selection of both materials and lubricants for future generations of engines will be influenced by the demands for efficient, environmentally sound, and minimally serviced but long-lived operation. The long-term tribological response of the selected materials is a significant issue which does not generally receive sufficient attention. An experimental approach to the evaluation of the long term-wear response of engine candidate ceramics, based on an earlier wear mode transition diagram, is discussed in this paper. Data are presented for initial studies of a silicon carbide whisker-silicon nitride composite.


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© Elsevier Science Publishers Ltd and MPA Stuttgart 1992

Authors and Affiliations

  • C. S. Yust
    • 1
  1. 1.Metals and Ceramics DivisionOak Ridge National LaboratoryOak RidgeUSA

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