Sökning: "cladding materials"

Visar resultat 21 - 25 av 38 avhandlingar innehållade orden cladding materials.

  1. 21. Theoretical and practical aspects of laser cladding

    Författare :Hans Engström; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Manufacturing Systems Engineering; Produktionsutveckling;

    Sammanfattning : .... LÄS MER

  3. 22. Analysis and development of the laser cladding process

    Författare :Hans Gedda; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Manufacturing Systems Engineering; Produktionsutveckling;

    Sammanfattning : This thesis presents an investigation into the laser cladding process using CO2 and Nd:YAG lasers. The work is divided into four papers: Paper one is a literature review of the subject of laser cladding. This presents a general overview of the subject from a practical and theoretical point of view. LÄS MER

  4. 23. Atomic Scale Degradation of Zirconium Alloys for Nuclear Applications

    Författare :Gustav Sundell; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Irradiation damage; Hydrogen microanalysis; Hydrogen pick-up; Zirconium alloys; Atom probe tomography; Corrosion;

    Sammanfattning : Due to their low thermal neutron capture cross-section, zirconium alloys are widely used in the nuclear industry as fuel cladding and for structural components. The lifetime of the fuel assemblies in the reactors is primarily dictated by the ability of the cladding to withstand oxidation and hydrogen pick-up from the coolant water and radiation damage induced by the neutron flux. LÄS MER

  5. 24. Combination of heating and preservative impregnation of wood for outdoor exposure

    Författare :Ekaterina Sidorova; Magdalena Kutnik; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wood Physics; Träfysik;

    Sammanfattning : The research is presented as a composite thesis containing a theoretical explanatory review based on four scientific articles. The thesis covers the investigation of wood modification methods, which in the future could possibly be developed further to enhance the performance of wood products in an efficient and economical way. LÄS MER

  7. 25. First Principles Approach to the Hydrogen Pick-up during Oxidation of Zirconium Alloys by Water

    Författare :Mikaela Lindgren; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; DFT; corrosion; zirconium alloys; hydrogen pick-up; electro-catalysis;

    Sammanfattning : Zirconium alloys are widely used in nuclear power plants as cladding material to contain the fission fuel in the reactor cores. A limiting factor for fuel longevity is the corrosion property of the zirconium alloys. The main corrodent in the reactor core is water. LÄS MER