In the automotive industry, there is an increasing demand to apply self-lubricious coatings to reduce fuel and oil consumption. Within this work, self-lubricious nanocomposite coatings consisting of 1-3.5 nm sized CrC nanocrystals embedded in an amorphous hydrogenated carbon (a-C:H) matrix have been developed in a laboratory-scale sputtering system and up-scaled to a production-type plant. The nanostructure and composition of these coatings are presented and correlated to mechanical and tribological properties. With hardness values of about 11 GPa, dry-sliding friction coefficients between 0.08 and 0.18, and wear rates between 3.9 x 10-16 and 2.8 x 10-15m3/N/m, the coatings outperform present state-of-the-art WC/a-C:H coatings and seem to be excellent candidates for applications in automotive engines and drivetrain systems.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Self-lubricating chromium carbide/amorphous hydrogenated carbon nanocomposite coatings: a new alternative to tungsten carbide/amorphous hydrogenated carbon


    Contributors:
    Mitterer, C. (author) / Lechthaler, M. (author) / Gassner, G. (author) / Fontalvo, G.A. (author) / Toth, L. (author) / Pecz, B. (author) / Raible, M. (author) / Maier, K. (author) / Bergmann, E. (author)


    Publication date :

    2009


    Size :

    7 Seiten, 5 Bilder, 23 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English





    Rapid Annealing Of Amorphous Hydrogenated Carbon

    Alterovitz, Samuel A. / Pouch, John J. / Warner, Joseph D. | NTRS | 1989


    Properties Of Plasma-Deposited Amorphous Hydrogenated Carbon

    Miyoshi, Kazuhisa / Pouch, John J. / Alterovitz, Samuel A. | NTRS | 1992


    A Comparison of the Tribology of Tetrahedral Amorphous Carbon and Hydrogenated Amorphous Carbon

    Heau, C. / Ledrappier, F. / Houze, L. | SAE Technical Papers | 2008


    A comparison of the tribology of tetrahedral amorphous carbon and hydrogenated amorphous carbon

    Ledrappier,F. / Houze,L. / Heau,C. et al. | Automotive engineering | 2008