Search for dissertations about: "Guisheng Wang"

Found 2 swedish dissertations containing the words Guisheng Wang.

  2. 1. Ab initio prediction of the mechanical properties of alloys

    Author : Guisheng Wang; Levente Vitos; Qing-Miao Hu; Douglas Irving; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Industriell ekonomi och organisation; Industrial Engineering and Management;

    Abstract : At the time of the 50th anniversary of the Kohn-Sham method, ab initio calculations based on density functional theory have formed an accurate, efficient, and reliable method to work on the properties of engineering materials. In this thesis, we use the exact muffin-tin orbitals method combined with the coherent-potential approximation to study the mechanical properties of high-technology materials. READ MORE

  4. 2. The Effect of Long Range Order on Elastic Properties of Alloys

    Author : Guisheng Wang; Levente Vitos; Balázs Ujfalussy; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; long-range order; elastic constant; alloys; magnetic; Industriell ekonomi och organisation; Industrial Engineering and Management;

    Abstract : Ab initio alloy theory, formulated within the exact muffin-tin orbitals method in combination with the coherent-potential approximation, is used to determine the effect of long range order on the elastic properties. The lattice parameters and single-crystal elastic constants of Cu3Au are calculated for different partially ordered structures ranging from the fully ordered L12 to the random face centered cubic lattice. READ MORE