Sökning: "aqueous corrosion"

Visar resultat 21 - 25 av 29 avhandlingar innehållade orden aqueous corrosion.

  1. 21. Surface nanomechanical properties of hydrogels and coatings

    Författare :Gen Li; Per M. Claesson; Jan van Stam; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nanomechanical properties; nanotribology; nanowear; poly-HEMA; poly-NIPAm; Cellulose nanocrystals; AFM; Kemi; Chemistry;

    Sammanfattning : Characterizing mechanical and wear properties at the nanometer scale emerged as a fascinating and challenging topic in the last decades due to recognition of many interesting and unusual properties of nanomaterials. Due to recent developments of the atomic force microscopy (AFM) technique, it is now possible to measure nanomechanical properties and topography simultaneously, as well as performing and evaluating wear measurements at the nanometer scale. LÄS MER

  3. 22. Ice Slurry as Secondary Fluid in Refrigeration Systems : Fundamentals and Applications in Supermarkets

    Författare :Cecilia Hägg; Per Lundqvist; Mats Strömblad; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ice slurry; refrigeration; supermarket; Thermal energy engineering; Termisk energiteknik;

    Sammanfattning : This thesis summarises the work performed within the project known as ICE-COOL at the Royal Institute of Technology (KTH) on low tem-perature applications of ice slurry. The ICE-COOL project is a Euro-pean Community funded project within the 5th Framework Program. LÄS MER

  4. 23. Radiation Induced Processes at Solid-Liquid Interfaces

    Författare :Miao Yang; Mats Jonsson; Susanna Wold; Simon Pimblott; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : In the thesis, the reactions between water radiolysis products—H2O2, HO• and O2—with metals and metal oxides utilized in nuclear industry are studied. The reactions include not only surface reactions, e.g. redox reactions and catalytic decomposition of H2O2, but also solution reactions (Haber-Weiss reactions). LÄS MER

  5. 24. Resonant Inelastic X-ray Scattering of Rare-Earth and Copper Systems

    Författare :Kristina Kvashnina; Joseph Nordgren; Clemens Heske; Uppsala universitet; []
    Nyckelord :Physics; resonant inelastic X-ray scattering; Fysik;

    Sammanfattning : Rare earths and copper systems were studied using X-ray absorption spectroscopy (XAS) and resonant inelastic X-ray scattering (RIXS). The use of monochromased synchrotron radiation and improved energy resolution for RIXS made possible to obtain valuable information on the electronic structure in 4f, 5f and 3d systems. LÄS MER

  7. 25. Functional properties of silicon nitride based materials for joint applications

    Författare :Luimar N. Corrêa Filho; Cecilia Persson; Julia Shelton; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Silicon nitride; Coatings; Wear; Joint replacements; HiPIMS; Teknisk fysik med inriktning mot materialvetenskap; Engineering Science with specialization in Materials Science;

    Sammanfattning : Total hip and total knee replacements are generally successful procedures for patients suffering with pain due to bone fracture or diseases affecting the joints. However, the materials that are commonly used still have limitations. In particular, corrosion products and wear debris may give rise to negative body reactions. LÄS MER