Sökning: "Magnesium"

Visar resultat 26 - 30 av 222 avhandlingar innehållade ordet Magnesium.

  1. 26. A study of devices and materials for polymer based LEDs

    Författare :Jonas Birgerson; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; conjugated; polymer; XPS; LED; Magnesium; blend; copolymer;

    Sammanfattning : Since the discovery that it is possible to dope conjugated polymers into high electrical conductivity the research in the field of conjugated polymers has increased a lot. Much of the research activity has been concentrated to the design and fabrication of light emitting devices. LÄS MER

  3. 27. The effect of microstructure and temperature on the atmospheric corrosion of Mg-Al alloys

    Författare :Mohsen Esmaily; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Atmospheric corrosion; microstructure; temperature; corrosion product; magnesium;

    Sammanfattning : The NaCl-induced atmospheric corrosion behavior of the Mg-Al alloy AM50 produced by rheo-casting (RC) and high pressure die casting (HPDC) techniques was studied in the laboratory. The exposures were performed at 95% RH in the absence and presence of 400 ppm CO2 at 22, 4 and -4ºC. In parallel, 99.97%Mg was investigated as reference. LÄS MER

  4. 28. Powder Bed Fusion – Laser Beam of Mg alloy WE43 : Establishing the process – structure – properties relationship

    Författare :Hanna Nilsson Åhman; Cecilia Persson; Francesco D'Elia; Pelle Mellin; Eduard Hryha; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Powder bed fusion - laser beam; additive manufacturing; magnesium; WE43; microstructure; Teknisk fysik med inriktning mot materialvetenskap; Engineering Science with specialization in Materials Science;

    Sammanfattning : Powder bed fusion - laser beam (PBF-LB) of Mg alloy WE43 (Mg-4wt%Y-3wt%RE-Zr) has great potential for the development of future biodegradable metal implants, as well as aerospace lightweight materials. However, the work published thus far has mainly focused on obtaining a fully dense material, and the understanding of the relationship among the PBF-LB process parameters, structure and the resulting material properties remains limited. LÄS MER

  5. 29. Cation Solvation in Water and Acetonitrile from Theoretical Calculations

    Författare :Daniel Spångberg; Kersti Hermansson; Philippe Bopp; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Inorganic chemistry; molecular dynamics; ab initio; lithium; sodium; magnesium; aluminum; metal ion; water; acetonitrile; solution; solvation; Oorganisk kemi; Inorganic chemistry; Oorganisk kemi;

    Sammanfattning : Metal ions solvated in aqueous, non-aqueous, and mixtures of solvents occur in many chemical contexts, for example in electrochemical applications and solvent separation. Solvated ions appear in high concentration in the living organisms, where their presence or absence can fundamentally alter the functions of life. LÄS MER

  7. 30. Precipitation of Kraft Lignin under Alkaline Conditions

    Författare :Jonas Sundin; KTH; []
    Nyckelord :Alkali lignin; Black liquors; Bleaching; Calcium; Coagulation; Colloids; Kraft pulp; Magnesium; Metals; Mills; Precipitation; Washing;

    Sammanfattning : .... LÄS MER