Sökning: "tribology"

Visar resultat 16 - 20 av 81 uppsatser innehållade ordet tribology.

  1. 16. Phosphonium Ionic Liquids at Interfaces: NR studies of interfacial electro-responsiveness

    Master-uppsats, KTH/Kemi

    Författare :Filip Mehler; [2022]
    Nyckelord :Neutron reflectometry; Ionic liquid; Phosphonium Ionic Liquid; Tribology; Neutronreflektometri; Jonvätskor; fosfoniumjonvätskor; tribologi;

    Sammanfattning : Fosfoniumjonvätskor har tidigare studerats som potentiella nya avancerade smörjmedel på grund av sina unika fysikaliska egenskaper och fördelar jämfört med både traditionella smörjmedel och andra typer av jonvätskor. Dessa studier har uppvisat lovande resultat med avseende på reducering av nötning och friktion såväl som kontroll av dessa parametrar med en pålagd elektrisk potential. LÄS MER

  3. 17. Preparation and Experimental Investigation of the Tribological Properties of Conductive Grease Containing Ionic Liquids

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad materialvetenskap

    Författare :Gabriella Johansson Segervall; [2022]
    Nyckelord :Ionic liquids; bearing current; tribology; conductive grease;

    Sammanfattning : This thesis project was executed at ABB AB. The purpose of the thesis was to formulate aselection of ionic liquids with different thickeners as greases and experimentally understand thetribological characteristics and electrical properties. LÄS MER

  4. 18. On the friction and failure mechanisms of bearing and gear surfaces lubricated by a novel nanoadditive in highly stressed operating conditions

    Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Diego Manuel Chamorro Ruz; [2022]
    Nyckelord :micropitting; nanoadditive; gear; bearing; tribology; rolling contact fatigue;

    Sammanfattning : Obtaining an enhanced lifespan for mechanical transmissions has become a challenge in diverse application sectors. Micropitting as a contact fatigue mechanism has seriously jeopardized the well-being of rolling-sliding elements present for instance in gearboxes. LÄS MER

  5. 19. Material analysis for a rotating inlet valve : Sliding contact in an oil-free super-critical steam environment

    Uppsats för yrkesexamina på avancerad nivå, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

    Författare :Johan Samuelsson; [2022]
    Nyckelord :Mechanical carbon; graphite; carbon graphite; zirconia; steam engine; steam; tribology; friction; wear; stellite; nitronic 60; antimony; carbon; Ni-resist cast iron; waste heat recovery; rotating inlet valve; valve; Mekaniskt kol; gafit; ångmotor; ånga; tribologi; friktion; nötning; gjutjärn; roterande inloppsventil; ventil;

    Sammanfattning : In this thesis, the aim is to study possible tribo-materials for a rotating inlet valve and to find a suitable material combination for the contact. The valve is part of a modern oil-free and high temperature steam engine. Systematic material selection together with tribological tests and wear analyses are performed. LÄS MER

  7. 20. Tribolysis : – Reaction of Aromatic Halides for Potential Dehalogenation

    Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Oluwaseunnla P. Adelusi; [2022]
    Nyckelord :Tribolysis; Tribology; Mechanochemical Processing; Dehalogenation; Dechlorination; Remediation; Persistent Organic Pollutants; POPs; Polychlorinated biphenyls; PCBs; Dichlorotoluene ;

    Sammanfattning : Out of the 17 Sustainable Development Goals (SDGs) adopted by the United Nations in 2015, chemicals and waste management are obtainable under six. Improper and unsafe disposal of toxic chemicals into the environment affects life below water (SDG 14), human health and well-being (SDG 7), and clean water and sanitation (SDG 6). LÄS MER