Search for dissertations about: "oxidized surface"
Showing result 1 - 5 of 144 swedish dissertations containing the words oxidized surface.
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1. Healing of endosseous implants with different surface characteristics in grafted and non-grafted bone : clinical and experimental studies
Abstract : Aims: This study uses radiological and clinical evaluations of the healing of endosseous titanium implants presented with different surface characteristics in the clinical situation (paper I-III) and experimentally to describe the early bone healing in maxillary sinus membrane elevation with and without the use of grafting material (paper IV).Material and methods: In paper I, 136 patients were treated with 394 dental implants – 199 were oxidized titanium implants (Nobel Biocare TiUnite) and 195 were turned titanium surface implants (Nobel Biocare Mark III). READ MORE
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2. The effect of surface steps and oxides on the catalytic activity on model Pd and Rh catalysts
Abstract : A catalyst is a substance that can speed up the rate of a chemical reaction without itself being consumed. Catalysts are crucial for chemical production industries, where about 90% of all chemicals are produced using catalysts. READ MORE
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3. Oxidized Cladophora nanocellulose derivatives : Functionalization towards biocompatible materials
Abstract : Nanocellulose is a promising candidate for biomedical applications because of its enhanced mechanical properties, increased surface area and greater porosity compared to bulk cellulose.This thesis investigates the functionalization of Cladophora nanocellulose and evaluates the influence of these modifications on physicochemical properties and biocompatibility of the material. READ MORE
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4. Preparation and Characterization of Glow Disharge Modifies Titanium Surfaces
Abstract : The main theme of the present thesis is controlled preparation and characterization of oxidized titanium surfaces. Such surfaces are of general technological interest. READ MORE
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5. Surface Integrity and Fatigue Performance of Nickel-based Superalloys
Abstract : Due to global warming, the demand for more efficient gas turbines has increased. A way to achieve this, is by increasing the operating temperature of the gas turbine. Therefore, nickel-based superalloys have been developed to withstand these extreme temperatures and loads, especially in the hot sections. READ MORE