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Showing result 1 - 5 of 9 swedish dissertations matching the above criteria.

  2. 1. Experimental studies of NOx storage catalysts -Preparation, characterisation, NOx regeneration and sulfur deactivation

    Author : Hussam Abdulhamid; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; sulfur poisoning; CO; DRIFT; precious metal; SO2; NOx storage; H2; NOx reduction; reducing agents; C3H6; H2O; C3H8; lean-burn;

    Abstract : .... READ MORE

  4. 2. Experimental and Theoretical Study of Rack Storage Fires

    Author : Haukur Ingason; Avdelningen för Brandteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; response time; in-rack sprinkler; flame heat transfer; gas velocity; gas temperature; flame height; in-rack fire plume; Rack storage fire; fire growth rate; Technological sciences; Teknik;

    Abstract : A theoretical and experimental study of rack storage fires and responsiveness of sprinklers is presented. Free-burn tests with non-combustible and combustible material were carried out in reduced scale with verification in large scale. READ MORE

  5. 3. Microstructure aspects of transition metal carbide thin films

    Author : Jun Lu; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chemistry; vapour deposition; transition metal carbide; nanocrystallinity; epitaxy; Kemi; Chemistry; Kemi; Inorganic Chemistry; oorganisk kemi;

    Abstract : Transition metal carbides are important refractory materials used in many thin film applications. In this thesis, several transition metal carbides have been deposited using different chemical vapour deposition (CVD) and evaporation processes. In particular, the phase composition and microstructure of these carbide films have been studied. READ MORE

  6. 4. Vapor phase deposition of WO and WC

    Author : Per Tägtström; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chemistry; vapor deposition; ALE; CVD; tungsten oxide; epitaxy; nanocrystals; tungsten carbide; Kemi; Chemistry; Kemi; Inorganic Chemistry; oorganisk kemi;

    Abstract : WO3 and WC are two compounds that are widely used for a number of different thin film applications. In this thesis, these compounds have been deposited using two different deposition methods: atomic layer epitaxy (ALE) and chemical vapor deposition (CVD). READ MORE

  7. 5. Precursors and defect control for halogenated CVD of thick SiC epitaxial layers

    Author : Milan Yazdanfar; Erik Janzén; Olle Kordina; Henrik Pedersen; Stephen Saddow; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Silicon carbide (SiC) is a very hard semiconductor material with wide band gap, high breakdown electric field strength, high thermal conductivity and high saturation electron drift velocity making it a promising material for high frequency and high power devices. The performance of electrical devices is strongly dependent on the quality, doping level and thickness of the grown epitaxial layers. READ MORE