Search for dissertations about: "Kompositmaterial och -teknik"
Showing result 1 - 5 of 8 swedish dissertations containing the words Kompositmaterial och -teknik.
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1. Strontium Titanate-based Anodes for Solid Oxide Fuel Cells
Abstract : The purpose for this work has been to develop new robust fuel electrodes for solid oxide fuel cells (SOFC). The aim was to find suitable ceramic materials or composites with promising properties for the use as SOFC anodes. READ MORE
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2. Free Volume and Mesopores in Polymer Nanocomposites
Abstract : The free volume in polymers is coupled to several important physical properties, such as density, viscosity and gas diffusivity. The physical properties of polymers close to a solid surface have been shown to be significantly perturbed as compared to their bulk state. READ MORE
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3. Semiconductor-ionic Materials for Low Temperature Solid Oxide Fuel Cells
Abstract : Solid oxide fuel cell (SOFC) is considered as an attractive candidate for energy conversion within the fuel cell (FC) family due to several advantages including environment friendly, use of non-noble materials and fuel flexibility. However, due to high working temperatures, conventional SOFC faces many challenges relating to high operational and capital costs besides the limited selection of the FC materials and their compatibility issues. READ MORE
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4. Xyloglucan-active enzymes : properties, structures and applications
Abstract : Cellulosabaserade material är världens rikligast förekommande förnyelsebara råvara. Växters cellväggar är naturliga kompositmaterial där den kristallina cellulosan är inbäddad i en väv av hemicellulosa, strukturproteiner och lignin. READ MORE
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5. Structural changes during cellulose composite processing
Abstract : Two approaches for creating a new all-cellulose composite material have been studied: the biosynthesis of compartmentalised bacterial cellulose fibril aggregates and the compression moulding of commercial chemical wood pulps processed with only water. The objective was to study the structural changes during processing and the complexity of relating the mechanical properties of the final biocomposites to the nanoscale structure was highlighted. READ MORE