Sökning: "X–ray diffraction"

Visar resultat 6 - 10 av 12 avhandlingar innehållade orden X–ray diffraction.

  1. 6. Paper-composite porcelain : characterisation of material properties and workability from a ceramic art and design perspective

    Författare :Kim Jeoung-Ah; Göteborgs universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Ceramic art and design; Paper clay; Porcelain;

    Sammanfattning : Paper-composite porcelain is a type of paper clay which is made by combining any kind of porcelain with paper. Paper is added to clay to improve low green strength and plasticity - two of the main practical problems of working with porcelain. LÄS MER

  3. 7. Crystallization in Constrained Polymer Structures : Approaching the Unsolved Problems in Polymer Crystallization

    Författare :Eugenia Núñez; Ulf W. Gedde; Bernard Lotz; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Crystallization; Constrained structures; poly ε–caprolactone ; poly ethylene oxybenzoate .; Polymer chemistry; Polymerkemi;

    Sammanfattning : The knowledge regarding certain issues in polymer crystallization e.g. the possible existence of short–lived mesophases remains inconclusive due to experimental limitations. Polymers undergo chain folding upon crystallization, which introduces some complications that are not found in crystallization of low molar mass materials. LÄS MER

  4. 8. Cryo-electron tomography of individual protein molecules

    Författare :Sara Sandin; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Cryo-Electron Microscopy; Cryo-Electron Tomography; Protein Conformation; Antibodies; Immunoglobulin G; Glucocorticoid Receptor; Hepatocyte Growth Factor Scatter Factor; Receptor Tyrosine Kinase MET;

    Sammanfattning : Averaging methods of determining structure, such as X-ray diffraction, do not preserve information about the flexibility of molecules. Cryo-electron tomography allows us to reconstruct individual hydrated objects. LÄS MER

  5. 9. ZrN based Nanostructured Hard Coatings : Structure-Property Relationship

    Författare :Phani Kumar Yalamanchili; Magnus Odén; Naureen Ghafoor; Emilio Jiménez-Piqué; Jon Andersson; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : Ever since the hard coatings have been introduced, there has been a constant push for better mechanical properties, which motivates for deeper understanding of the microstructure-mechanical properties correlation. The aim of this thesis is to extend the knowledge on how microstructural variation influences the deformation, fracture and wear behavior of ZrN based nanostructured coatings. LÄS MER

  7. 10. NH3-SCR chemistry for NOx abatement: Influence of zeolite support on N2O formation & phosphorus species addition

    Författare :Joonsoo Han; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Copper; NH3 SCR chemistry; Zeolite topology; N2O; Phosphorus poisoning;

    Sammanfattning : Different lattice arrangements of Si, Al, and O atoms result in a variety of pore dimensions and zeolite channel network systems, giving rise to different physicochemical environments inside the catalyst cage. The objective of the thesis work was to understand the influence of zeolite topology on NH3-assisted SCR chemistry over CHA, MFI, and BEA frameworks, on the formation of N2O and the addition of phosphorus species to attain fundamental insight into NOx emission control. LÄS MER