Sökning: "ALUMINUM"

Visar resultat 31 - 35 av 247 avhandlingar innehållade ordet ALUMINUM.

  1. 31. Atmospheric corrosion of zinc-aluminum and copper-based alloys in chloride-rich environments : Microstructure, corrosion initiation, patina evolution and metal release

    Författare :Xian Zhang; Inger Odnevall Wallinder; Christofer Leygraf; Manuel Morcillo; KTH; []
    Nyckelord :atmospheric corrosion; chloride deposition; Zn-Al alloy coatings on steel microstructure; Cu sheet and Cu alloys; microstructure; corrosion initiation; corrosion product evolution; metal release; SEM; IRAS; CRM.; Kemi; Chemistry;

    Sammanfattning : Fundamental understanding of atmospheric corrosion mechanisms requires an in-depth understanding on the dynamic interaction between corrosive constituents and metal/alloy surfaces. This doctoral study comprises field and laboratory investigations that assess atmospheric corrosion and metal release processes for two different groups of alloys exposed in chloride-rich environments. LÄS MER

  3. 32. Characterization of aluminum in environmental systems using X-ray absorption and vibrational spectroscopy : The importance of organic matter

    Författare :Kristoffer Hagvall; Torbjörn Karlsson; Per Persson; Lars Lövgren; Dan Berggren Kleja; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The fate and behavior of many metals in the environment are highly dependent on interactions with natural organic matter (NOM), which is abundant in most soils and surface waters. The complexation with NOM can influence the speciation of the metals by affecting their hydrolysis and solubility. LÄS MER

  4. 33. Aspects of pertussis, pertussis vaccination and adverse events associated with aluminum adsorbed vaccines

    Författare :Elisabet Bergfors; Göteborgs universitet; []
    Nyckelord :Pertussis; parapertussis; pertussis toxoid; vaccine; vaccination; vaccine trial; adjuvant; aluminium; adsorbed vaccines; adverse event; pruritic nodules; itching nodules; granuloma; sensitisation; hypersensitivity; contact allergy;

    Sammanfattning : The thesis originates in a clinical study of one of the new acellular pertussis vaccines performed in Göteborg in the 1990s. The monocomponent vaccine, pertussis toxoid adsorbed to aluminium hydroxide, had previously been shown to have an efficacy of 71%. LÄS MER

  5. 34. All-ceramic Fixed Partial Denture. Studies on aluminum oxide- and zirconium dioxide-based

    Författare :Per Vult von Steyern; Malmö högskola; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; dental ceramics; dental porcelain; all-ceramic; fixed partial dentures;

    Sammanfattning : Keramiska material har länge använts inom tandvården för framställning av tandersättningar. Keramer har många goda egenskaper som gör dem särskilt lämpliga att använda i munnen. LÄS MER

  7. 35. Epitaxial aluminum nitride thin films on 6H-silicon carbide, grown by magnetron sputter deposition

    Författare :Sukkaneste Tungasmita; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : The research presented in this thesis is focused on epitaxial wurtzite-structure Aluminum Nitride (AlN) thin film synthesis, by ultra-high-vacuum (UHV) de magnetron sputter deposition, on Silicon Carbide (6H-SiC) substrates. The emphasis of the work has been put on controlling the growth and quality of the films to be able to use this material in electronic device applications. LÄS MER