Sökning: "low-friction coatings"

Visar resultat 6 - 10 av 32 avhandlingar innehållade orden low-friction coatings.

  1. 6. Wear resistant low friction coatings for engine components

    Författare :Per Lindholm; Sören Andersson; Rickard Larker; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering materials; cam; roller follower; carbon coating; engine test; finite element method; Konstruktionsmaterial; Construction materials; Konstruktionsmaterial;

    Sammanfattning : Engine development today is driven by cost, performance and government regulations. Customers want cars and trucks to consume less fuel, last longer, pollute less and be safer. Several of the requirements have tribological associations. For example, product longevity can be improved by lowering friction and using more wear-resistant components. LÄS MER

  3. 7. Self Lubrication on the Atomic Scale : Design, Synthesis and Evaluation of Coatings

    Författare :Mattias Lindquist; Sture Hogmark; Urban Wiklund; Ian Hutchings; Uppsala universitet; []
    Nyckelord :Materials science; Tribology; low friction; PVD; sputtering; nanocomposite; Materialvetenskap;

    Sammanfattning : In this thesis a new design concept of tribologically active coatings aimed for low friction applications, have been explored. Materials modeled by ab initio DFT calculations were realized through deposition of carbide and nanocomposite coatings by DC-magnetron sputtering. LÄS MER

  4. 8. Synthesis and Evaluation of TaC:C Low-Friction Coatings

    Författare :Daniel Nilsson; Urban Wiklund; Maria Åstrand; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; Materialvetenskap; Materials science; Teknisk materialvetenskap; materialvetenskap; Materials Science;

    Sammanfattning : In the large family of carbon-based coatings there are members capable of providing a rare and very desirable combination of high wear resistance and low friction. The field of application for this kind of coatings is steadily increasing which, naturally, give raise to new questions and demands. LÄS MER

  5. 9. Micro- and nanocrystalline diamond coatings with extreme wear resistance and ultra low friction

    Författare :Patrik Hollman; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  7. 10. On the Formation of Low-Friction Tribofilms in Me-DLC – Steel Sliding Contacts

    Författare :Nils Stavlid; Urban Wiklund; Sture Hogmark; Erik Johansson; Uppsala universitet; []
    Nyckelord :Materials science; tribofilms; tribochemistry; boundary-lubrication; ESCA; Materialvetenskap;

    Sammanfattning : The present thesis thoroughly treats a special friction reduction phenomenon that may appear in boundary lubricated tribological contacts, of the type encountered in numerous mechanical components made of steel. The phenomenon involves the formation of a special type of tribofilm that offers very low coefficients of friction. LÄS MER