Search for dissertations about: "HAADF STEM"

Showing result 1 - 5 of 8 swedish dissertations containing the words HAADF STEM.

  2. 1. Microstructure Investigation of the Oxidation Process in Zircaloy-2 - The Effect of Intermetallic Particle Size

    Author : Pia Tejland; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Zircaloy-2; STEM; HAADF; ADF; FIB; SEM; EDX; APT;

    Abstract : Zirconium alloys are widely used in nuclear reactors as fuel cladding tubes because of their low thermal neutron capture cross-section, good corrosion properties and satisfactory mechanical properties. With an improved corrosion resistance the alloys could be used for much longer times in the reactors, increasing fuel burn-up and decreasing the amount of radioactive waste. READ MORE

  4. 2. Microstructure of Zirconium Alloys Oxidized in Steam

    Author : Pia Tejland; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; EDX; ADF; TEM; Zircaloy-2; FIB-SEM; STEM; GD-OES; SPP; SEM; Zirconium; HAADF;

    Abstract : Zirconium alloys are widely used in nuclear reactors as fuel cladding tubes because of their low thermal neutron capture cross-section, good corrosion properties and satisfactory mechanical properties. However, the main limiting factor of these materials is the oxidation behavior. READ MORE

  5. 3. High resolution microstructural characterization of oxide thin films and interfaces

    Author : Nikolina Tuzla; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; oxides; Microstructure; TEM; thin films; interfaces; HAADF STEM; YSZ.; SrTiO3; 2DEG; LaAlO3; heterostructures;

    Abstract : Oxide interfaces can introduce properties that are different compared to thecorresponding crystal bulk properties. The properties can be tuned by changing thestructure. It has become clear that these oxide interface systems are potentiallysuitable for future electronic devices with unique and tailored properties. READ MORE

  6. 4. The Role of Interfacial Microstructure of Perovskite Thin FIlms - A High Resolution and In Situ Study

    Author : Johan Börjesson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; KTO; STO; Perovskites; thin film; interfaces; SRO; microstructure; HAADF STEM; TEM; in situ TEM; LAO;

    Abstract : Perovskite based materials have recently shown to have many unique properties that make them suitable for future electronic devices. In this thesis, the role of the interfacial microstructure on the properties of perovskite thin film heterostructures has been investigated. READ MORE

  7. 5. Synthesis of tailored nanoparticles for supported oxidation catalysts

    Author : Yanyue Feng; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Supported core@shell nanoparticles; Structural stability; CO oxidation;

    Abstract : The transition from microscale to nanoscale materials design leads to immense changes of physical and chemical properties of the materials. For decades, the design and making of functional nanomaterials have been at the frontier of what can be achieved, even with the more sophisticated synthesis methods. READ MORE