Sökning: "Single crystal"

Visar resultat 1 - 5 av 461 avhandlingar innehållade orden Single crystal.

  1. 1. Nickel-Based Single-Crystal Superalloys : the crystal orientation influence on high temperature properties

    Författare :Mikael Segersäll; Johan Moverare; Kjell Simonsson; Daniel Leidermark; Roger Reed; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : Superalloys are a group of materials that are used in high temperature applications, for example gas turbines and aero engines. Gas turbines are most commonly used for power generation, and it is only the very critical components which are exposed to the most severe conditions within the turbine, which are made from superalloy material. LÄS MER

  3. 2. Crystal plasticity and crack initiation in a single-crystal nickel-base superalloy : Modelling, evaluation and applications

    Författare :Daniel Leidermark; Kjell Simonsson; Johan Moverare; Sören Sjöström; Hannu Hänninen; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Single-crystal superalloy; Crystal plasticity; Fatigue crack initiation; Critical plane model; Theory of critical distance; Rafting; Tension compression asymmetry;

    Sammanfattning : In this dissertation the work done in the projects KME-410/502 will be presented.The overall objective in these projects is to evaluate and develop tools for designingagainst fatigue in single-crystal nickel-base superalloys in gas turbines. LÄS MER

  4. 3. Chirality in Crystal Engineering

    Författare :Krister Larsson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; networks; 2; coordination chemistry; crystal engineering; 10; 3-nets; hydrogen bonding; 2 -biimidazole; single crystal X-ray diffraction; bis-chelating ligands; chirality;

    Sammanfattning : Crystal engineering combines supramolecular chemistry with solid state chemistry. The goal is to make molecular entities assemble into predefined structures with specific properties. At the same time much research is focused on the understanding of the intermolecular interactions governing the crystallisation process. LÄS MER

  5. 4. Single-crystal Mo/V superlattices : growth, structure, and hydrogen uptake

    Författare :Jens Birch; Jan-Erik Sundgren; Bruce M Clemens; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Fundamental studies concerning the growth, structural characterization and hydrogen uptake of single-crystal (00 l )-oriented Mo/V superlattices have been performed. The superlattices were grown by dual-target magnetron sputtering in pure Ar-atmosphere < 6·10-3 Torr on (001)-oriented MgO substrates. LÄS MER

  7. 5. Modelling of constitutive and fatigue behaviour of a single-crystal nickel-base superalloy

    Författare :Daniel Leidermark; Kjell Simonsson; Johan Moverare; Sören Sjöström; Roger C. Reed; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Single-crystal nickel-base superalloys; crystal plasticity; tension compression asymmetry; rafting; fatigue initiation; critical plane approach; Engineering mechanics; Teknisk mekanik;

    Sammanfattning : In this licentiate thesis the work done in the project KME410 will be presented. The overall objective of this project is to evaluate and develop tools for designing against fatigue in single-crystal nickel-base superalloys in gas turbines. LÄS MER