Sökning: "tungsten disulfide"

Hittade 2 avhandlingar innehållade orden tungsten disulfide.

  1. 1. Triboactive Component Coatings : Tribological Testing and Microanalysis of Low-Friction Tribofilms

    Författare :Fredrik Gustavsson; Staffan Jacobson; Bojan Podgornik; Uppsala universitet; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; tribofilms; low-friction coatings; tungsten disulfide; TEM; Materialvetenskap; Materials Science;

    Sammanfattning : Coatings are often used on critical components in machines and engines to reduce wear and to provide low friction in order to reduce energy losses and the environmental impact.A triboactive coating not only provides this desired performance, it also actively maintains the low friction by a structural or chemical change in a very thin top layer of these already micrometer thin coatings. LÄS MER

  2. 2. Triboactive Low-Friction Coatings Based on Sulfides and Carbides

    Författare :Jill Sundberg; Ulf Jansson; Jochen M. Schneider; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; coatings; thin films; tribology; tungsten disulfide; transition metal dichalcogenide; nanocomposite; TiC a-C; tribofilms; PVD; XPS; HAXPES; XRD; SEM; TEM; Raman spectroscopy; nanoindentation; Kemi med inriktning mot oorganisk kemi; Chemistry with specialization in Inorganic Chemistry;

    Sammanfattning : For sustainable development, it is highly important to limit the loss of energy and materials in machines used for transportation, manufacturing, and other purposes. Large improvements can be achieved by reducing friction and wear in machine elements, for example by the application of coatings. LÄS MER