Search for dissertations about: "surface coatings"
Showing result 1 - 5 of 354 swedish dissertations containing the words surface coatings.
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1. Multilayer Structures for Biomaterial Applications : Biomacromolecule-based Coatings
Abstract : The cellular response to a biomaterial, such as a dental implant, is mainly governed by the surface properties, and can thus be altered by the introduction of a surface coating. In this thesis the buildup of a biomacromolecule-based coating formed by layerby-layer (LbL) deposition of the charged polypeptides poly(L-lysine) (PLL) and poly(L-glutamic acid) (PGA) has been studied. READ MORE
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2. Alumina Thin Films : From Computer Calculations to Cutting Tools
Abstract : The work presented in this thesis deals with experimental and theoretical studies related to alumina thin films. Alumina, Al2O3, is a polymorphic material utilized in a variety of applications, e.g., in the form of thin films. READ MORE
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3. Thermal Barrier Coatings : Failure Mechanisms and Life Prediction
Abstract : Thermal barrier coatings (TBCs) use in the hot sections of gas turbine engine enables them to run at higher temperatures, and as a consequence, achieve higher thermal efficiency. For full operational exploitation of TBCs, understanding their failure and knowing the service life is essential. READ MORE
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4. Microstructure and plastic deformation of textured CVD alumina coatings
Abstract : It is known that the wear performance of α-alumina coatings produced by chemical vapor deposition (CVD) is significantly influenced by the type and degree of texture. However, the main reasons behind this behavior are not fully understood. This thesis contains studies of two related topics for increasing the understanding of α-alumina coatings. READ MORE
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5. Oxidation behaviour of MCrAlX coatings : effect of surface treatment and an Al-activity based life criterion
Abstract : MCrAlY coatings (M=Ni and/or Co) have been widely used for the protection of superalloy components against oxidation and hot corrosion in the hot sections of gas turbines. The drive to improve engine combustion efficiency while reducing emissions by increasing the operation temperature brings a big challenge for coating design. READ MORE