Sökning: "ytbehandling"

Visar resultat 6 - 10 av 18 avhandlingar innehållade ordet ytbehandling.

  1. 6. Control of particles codeposition and strengthening mechanisms in nickel based nanocomposite coatings

    Författare :Santiago Pinate; Caterina Zanella; Peter Leisner; Mari Lindström; Jönköping University; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Dispersion coatings; nanocomposite; Controlled particles codeposition; Surface treatment; ζ-potentials; Pulse-reverse deposition; Ultrasound agitation; Electrocrystallisation; Microstructure; Strengthening mechanisms; Hardness; Wear; Dispersionsbeläggning; nanokomposit; kontrollerad inkorporering av partiklar; ytbehandling; zeta-potential; bipolär pulsplätering; ultraljudsomrörning; elektrokristallisation; mikrostruktur; härdningsmekanism; hårdhet; nötning;

    Sammanfattning : Surface durability is a key factor in the service life of components. Depending on the aggressiveness of the environment, surface deterioration by wear or corrosion leads to failure of the bulk material and eventually to the loss of functionality of the component. LÄS MER

  3. 7. Micromechanical retention and chemical bonding to polycrystalline dental ceramics : studies on aluminum oxide and stabilized zirconium dioxide

    Författare :Evaggelia Papia; Malmö högskola; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; alumina; aluminium oxide; bond strength; oxide ceramics; polycrystalline dental ceramics; stabilized zirconium dioxide; Y-TZP; zirconia; adhesive cements;

    Sammanfattning : Det pågår en ständig utveckling av olika dentala material avsedda föratt ersätta förlorad tandsubstans. En materialgrupp som är särskiltintressant är höghållfasta keramiska material, oxidkeramer så somyttriumdioxidstabiliserad tetragonal polykristallin zirkoniumdioxid(Y-TZP). LÄS MER

  4. 8. Tools for applied soft ionization mass spectrometry

    Författare :Joakim Romson; Åsa Emmer; Peter Dinér; Steven Wilson; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mass spectrometry; Electrospray ionization; Matrix assisted laser desorption ionization; Mass accuracy; Mass shifts; Ion trap; Capillary electrophoresis; Sample concentration; Masspektrometri; Elektrospray-jonisering; Matrisassisterad laser desorbtion jonisering; Mass-exakthet; Masskift; Jonfälla; Kapillärelektrofores; Provkoncentration; Kemi; Chemistry;

    Sammanfattning :  Mass spectrometry (MS) is an important analytical tool. Its most importantadvantages are sensitivity, resolution, and accurate and precise m/zmeasurements. To get the best results from an instrument, the user musthave knowledge of its limitation and requirements. LÄS MER

  5. 9. Experimental Studies on CO2 Capture Using Absorbent in a Polypropylene Hollow Fiber Membrane Contactor

    Författare :Yuexia Lu; Jinyue Yan; Erik Dahlquist; Umberto Desideri; Mälardalens högskola; []
    Nyckelord :CO2 capture; Simultaneous removal of CO2 and SO2; Hollow fiber membrane contactor; Membrane gas absorption; Partial wetting; Surface modification; CO2-avskiljning; samtidig avskiljning av CO2 och SO2; ihålig fiber; membran; gas absorption; vätning; ytmodifiering; Energy- and Environmental Engineering; energi- och miljöteknik;

    Sammanfattning : In recent years, membrane gas absorption technology has been considered as one of the promising alternatives to conventional techniques for CO2 capture due to its favorable mass transfer performance. As a hybrid approach of chemical absorption and membrane separation, it exhibits a number of advantages, such as operational flexibility, compact structure, high surface-area-to-volume ratio, linear scale up, modularity and predictable performance. LÄS MER

  7. 10. Exploring bis-MPA Based Dendritic Structures in Biomedicine

    Författare :Oliver Andrén; Michael Malkoch; Peter Löwenhielm; Sandra Garcia Gallego; Karen Wooley; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Dendrimers; Polymers; antibacterial; self-assembly; Kemi; Chemistry;

    Sammanfattning : In the last decades there has been significant advances in polymer chemistry. New coupling chemistries, polymerization techniques and accelerated approaches enable researches to push the limits of structural control. LÄS MER