In support of development efforts for advanced heat engines, self-lubricating materials were evaluated for their friction and wear characteristics above 260 C. The work focused on the ring/cylinder interface and tested self-lubricating ring or cylinder specimens against plasma-sprayed chromia or other ceramic materials. Three materials were chosen for the evaluation. Two of them were solid lubricant compacts, and one was a self-lubricating coating. The compacts were the Westinghouse (Boes) compact and a commercially available molybdenum disulfide-based composite. The coating consisted of a wear-resistant matrix filled with solid lubricating materials to reduce friction. The Boes compact resulted in high temperature friction and wear results that were in some cases equal to or better than those of earlier tests run with liquid lubrication. The other compact and the coating both had much higher wear and coefficients of friction than the Boes compact. The work showed the potential of solid lubricants to lubricate the ring/cylinder interface in low-heat-rejection engines effectively.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Self-Lubricating Materials for High Temperature Ring/Cylinder Application


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    International Congress & Exposition ; 1991



    Publication date :

    1991-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Self-lubricating materials for high temperature ring/cylinder application

    Gaydos,P.A. / Battelle Columbus Lab.,US | Automotive engineering | 1991


    High-Temperature, Self-Lubricating Ceramic/Metal Composites

    Sliney, Harold E. / Dellacorte, Christopher / Bogdanski, Michael S. et al. | NTRS | 1994


    Extruded Self-Lubricating Solid For High-Temperature Use

    Sliney, H. E. / Waters, W. J. / Soltis, R. F. et al. | NTRS | 1996