Sökning: "crystal structures"

Visar resultat 16 - 20 av 534 avhandlingar innehållade orden crystal structures.

  1. 16. On computational homogenization of gradient crystal inelasticity

    Författare :Kristoffer Carlsson; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; computational homogenization; gradient theory; multiscale modeling; crystal plasticity;

    Sammanfattning : Crystal inelasticity is the main modeling technique employed to study the mechanical behavior of polycrystalline metallic materials. This class of models has the capability to represent micromechanical phenomena such as plastic slip, grain boundary interactions, and dislocation pile-up. LÄS MER

  3. 17. Optical studies of crystal phase heterostructures

    Författare :Irene Geijselaers; NanoLund: Centre for Nanoscience; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; III-V semiconductor nanowires; photoluminescence; photoluminescence excitation; polytype; crystal phase heterostructure; InP; GaAs; wurtzite; Fysicumarkivet A:2021:Geijselaers;

    Sammanfattning : III-V semiconductors are commonly used for a variety of optical applications, such as LED based lights and solar sells. Most III-V semiconductors, such as GaAs and InP, exhibit the zinc-blende (zb) crystal structure, but in the form of nanowires it is also possible to create them in the wurtzite (wz) crystal structure. LÄS MER

  4. 18. Aspects of direct method procedures for solving crystal structures : applications to isoalloxazine and pteridine derivatives and some comments on the structural chemisty of flavin compounds

    Författare :Rolf Norrestam; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  5. 19. Synthesis, phase analysis and crystal structures of some borides

    Författare :Yang Yu; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  7. 20. On the crystal structures of MoO₂ and MoO₃. 2H₂O : an account of computer programming and structure refinement

    Författare :Björn G. Brandt; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER