Sökning: "erosion and deposition"
Visar resultat 6 - 10 av 44 avhandlingar innehållade orden erosion and deposition.
6. Cathodic arc deposition process
Sammanfattning : This thesis aims to expand the knowledge of fundamental mechanisms that govern the cathodic arc process. The first part of this thesis explores and explains the correlations between a rather unexplored process parameter (i.e. cathode microstructure) and the microstructure of the coatings. LÄS MER
7. Plasma-Facing Components in Tokamaks : Material Modification and Fuel Retention
Sammanfattning : Fuel inventory and generation of carbon and metal dust in a tokamak are perceived to be serious safety and economy issues for the steady-state operation of a fusion reactor, e.g. ITER. LÄS MER
8. Coastal Overwash: Processes and Modelling
Sammanfattning : Overwash is the flow of water and sediment over the crest of a beach system when the runup level of waves or the water level, often enhanced by storm surge, exceeds the local beach or dune crest height. The impacts of overwash on coastal barriers or low lying mainland coasts are striking. LÄS MER
9. Thin Film and Plasma Characterization of PVD Oxides
Sammanfattning : The state-of-the-art tools for machining metals are primarily based on a metal-ceramic composite(WC-Co) coated with different combinations of carbide, nitride and oxide coatings. Combinations of these coating materials are optimized to withstand specific wear conditions. LÄS MER
10. Impact of erosion and deposition processes on wall materials in tokamaks
Sammanfattning : Understanding of material migration and control of fuel retention are essential for the safe operation of a reactor-class fusion machine. Work presented in the thesis focuses on erosion-deposition processes which are decisive for the formation and properties of co-deposited fuel-containing layers on plasma-facing and diagnostic components, and for the dust formation. LÄS MER