Search for dissertations about: "spray-deposition"

Showing result 1 - 5 of 10 swedish dissertations containing the word spray-deposition.

  2. 1. Development of syntheses for nanostructured titania and silica

    Author : Gunnar Örn Simonarson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; lithium intercalation; nanoparticles; X-ray characterization; mesoporous silica; mesoporous titania; spray deposition; Titanium dioxide;

    Abstract : Nanostructured titania is of great interest for a variety of energy and environmental applications, including conversion of solar energy, for energy storage systems and removal of organic pollutants in water and air. Titania is composed of earth abundant elements, it is environmentally friendly and chemically stable which makes it an attractive material to utilize. READ MORE

  4. 2. On the Spray Forming of Metals, the Formation of Porosity and the Heat Evolution during Solidification

    Author : José Tinoco; KTH; []
    Keywords : Thermal analysis; Nodular Cast Iron; Inconel 625; CFD; Flow Assesment; Multiphase Flow; Spray Deposition; Microporosity; Superalloys;

    Abstract : This thesis deals with the heat evolution duringsolidification and its relation to the formation of porosity.It intends to improve the current understanding of theformation of porosity in cast materials with special interestin nodular cast iron and the spray forming process. READ MORE

  5. 3. Structure and morphology control of organic semiconductors for functional optoelectronic applications

    Author : Jenny Enevold; Ludvig Edman; Thomas Wågberg; Christian Müller; Umeå universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Organic electronics; organic photonics; patterning; fullerene; polymerization; dimerization; spray-deposition; morphology; small molecule donor; high open-circuit voltage;

    Abstract : The functionality and application of organic semiconductors are largely dependent on their constituent structure and morphology. This thesis presents a number of functional and novel approaches for the control and tuning of structural and morphological features of a variety of organic semiconductor materials, and also demonstrates that these approaches can be utilized for improved device operation of field-effect transistors, organic solar cells and light-emitting electrochemical cells. READ MORE

  6. 4. Microstructure and properties of coatings produced by spray deposition of Ti2AlC powders

    Author : Marie Sonestedt; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; High Velocity Oxy-Fuel HVOF ; TEM; SEM; oxidation; cold spray; microstructure; Ti2AlC; coatings;

    Abstract : .... READ MORE

  7. 5. Graphene Implementation Study in Semiconductor Processing

    Author : Patrik Ahlberg; Zhibin Zhang; Shi-Li Zhang; Ulf Jansson; Eleanor Campbell; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Graphene, with its two-dimensional nature and unique properties, has for over a decade captured enormous interests in both industry and academia. This work tries to answer the question of what would happen to graphene when it is subjected to various processing conditions and how this would affect the graphene functionality. READ MORE