Sökning: "röntgenspektroskopi"

Visar resultat 1 - 5 av 10 uppsatser innehållade ordet röntgenspektroskopi.

  1. 1. Development and understanding of a model V2O5/anatase TiO2(101) SCR catalyst

    Master-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Författare :Johanna Paulsson; [2023]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : A model V2O5/ anatase TiO2(101) SCR catalyst is studied with the purpose of developing and understanding the reaction mechanism through which this catalyst reduces NOx. Several reaction mechanisms have been proposed for this catalyst in the past, but there is still no agreement on which of these describe the reaction the best, if any. LÄS MER

  3. 2. Exploring Particulate Filtration during Thermal Runaway in Lithium-Ion Battery Packs

    Master-uppsats, KTH/Kemiteknik

    Författare :Amanda Halvarsson; [2023]
    Nyckelord :battery pack; particles; thermal runaway; filtration; batteripack; partiklar; termisk rusning; filtrering;

    Sammanfattning : Med övergången till elektrifiering inom transport uppstår nya utmaningar när det gäller batterisystem som placeras i elfordon. Det finns för närvarande en möjlighet att minska riskerna med toxiciteten hos partiklar som sprutas ut med de gaser som bildas under termisk rusning i litiumjonbattericeller som är placerade i batterisystem. LÄS MER

  4. 3. Characterisation of Manufacturing Defects in Anode, Cathode, and Separator of Lithium-ion Batteries

    Master-uppsats, KTH/Materialvetenskap

    Författare :Prathibha Vadakkemuriyil Prasannen; [2023]
    Nyckelord :Lithium-ion battery; Defects; Electrodes; Separators; Analysis; Litiumjonbatteri; Defekter; Elektroder; Separatorer; Analys;

    Sammanfattning : This study characterizes production-line defects in lithium-ion batteries' anode, cathode, and separators. Lithium-ion batteries demand has increased tremendously in the last decades due to their use in various applications, including electric vehicles, portable electronics, and energy storage systems. LÄS MER

  5. 4. Development of Nickel-Titanium Shape Memory Alloys using Electron Beam Melting

    Master-uppsats, KTH/Materialvetenskap

    Författare :Georgios Manolios; [2022]
    Nyckelord :;

    Sammanfattning : In this project, the effect of electron beam melting on the behavior of NiTi shape memory alloyshas been studied, with focus on the effects of recycling powder within the process and theprocess parameters used and how “smoking” is affected. Flowability, powder characteristicsand chemical composition have been evaluated using imaging analysis techniques, Hallflowmeter measurements, FT4 powder rheometry and energy dispersive X-ray spectroscopyboth in virgin powder and in recycled powders. LÄS MER

  7. 5. Correlation between microstructure and fatigue cracks in cast aluminium alloy A205

    Kandidat-uppsats, Jönköping University/Tekniska Högskolan

    Författare :Max Holmberg; Pontus Sundberg; [2022]
    Nyckelord :Aluminium Alloy A205;

    Sammanfattning : Materials research in the aerospace industry is, among other things, focused on reducing the weight and increasing the life of components. Materials with high strength and long lifespan are therefore examined. LÄS MER