Search for dissertations about: "MGO 100"

Showing result 1 - 5 of 28 swedish dissertations containing the words MGO 100.

  2. 1. YBa2Cu3O7-δ Biepitaxial and Step Edge Josephson Junctions on MgO Substrates. SQUID Amplifier

    Author : Jaime Ramos; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; step edge junction; noise; biepitaxial junction; energy resolution; high-TC superconductor; dc SQUID; YBa2Cu3O7; laser deposition; CeO2; amplifier; Germany; sapphire; MgO;

    Abstract : This thesis concerns the preparation of Josephson junctions and their applications in Superconducting Quantum Interference Devices (SQUIDs). High temperature superconductors were used for operation at 77 K, the boiling temperature of liquid nitrogen. READ MORE

  4. 2. Polyethylene/metal oxide nanocomposites for electrical insulation in future HVDC-cables : probing properties from nano to macro

    Author : Love Pallon; Ulf Gedde; Mikael Hedenqvist; Richard Olsson; Alun Vaughan; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Nanocomposites; polyethylene; particle dispersion; high voltage direct current cables; HVDC; HVDC insulation; MgO; intermodulation electrostatic force microscopy; ptychography; electrical tree; Nanokompositer; polyeten; HVDC; HVDC-kabel; HVDC-isolering; MgO; elektrisk isolation; partikeldispergering; elektriska träd; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Abstract : Nanocomposites of polyethylene and metal oxide nanoparticles have shown to be a feasible approachto the next generation of insulation in high voltage direct current cables. In order to reach an operationvoltage of 1 MV new insulation materials with reduced conductivity and increased breakdown strengthas compared to modern low-density polyethylene (LDPE) is needed. READ MORE

  5. 3. Preparation and structural characterisation of Pd/MgO(001) model catalysts

    Author : Helena Fornander; Linköpings universitet; []
    Keywords : ;

    Abstract : Palladium films with nominal thicknesses varying between 0.5 and 40 nm have been grown by electron beam evaporation on polished MgO(OO1) wafers, kept at substrate temperatures, Ts, of 100, 300 and 600 °C. READ MORE

  6. 4. Characterisation of Structural and Catalytic Properties of Pd Grown on MgO

    Author : Helena Fornander; Claude Henry; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : In heterogeneous catalysis research, extended single-crystal surfaces of catalytic metals have been largely used to study fundamental aspects of, e.g., gas adsorption and desorption. READ MORE

  7. 5. A Study on the Influence of Steel, Slag or Gas on Refractory Reactions

    Author : Sune Jansson; Pär Jönsson; Lauri Holappa; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Metallurgical process engineering; Metallurgisk processteknik;

    Abstract : During the production of steel the oxide inclusion content partly depends on the reaction of the melt with the furnace lining, the ladle lining and the pouring system. The refractory material may be eroded by the molten steel and slag as well as corroded through chemical reactions with the slag and molten steel and the deoxidation products. READ MORE