Search for dissertations about: "Plasma spraying"

Showing result 1 - 5 of 17 swedish dissertations containing the words Plasma spraying.

2. 1. The Prediction of Fluid Flow, Particle In-Flight and Coating Characteristics in Atmospheric Plasma Spraying

   Author : Per Nylén; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; particle temperature; coating temperature; coating thickness; particle velocity; plasma spraying; fluid flow; modelling;

   Abstract : The aim of this thesis is to make a contribution to the development and application of models for the simulation and optimisation of plasma spray processes in production engineering. In particular, focus is placed on the development, combination and application of models for coating deposition and robot motion optimisation, the prediction of coating temperatures during deposit, the simulation of the plasma flow field, and in-flight characteristics of injected particles. READ MORE

4. 2. A Methodology to Control the Microstructure of Plasma Sprayed Coatings

   Author : Martin Friis; Materialteknik; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; materialteknik; Materiallära; Process map; Plasma spraying; process window; Thermal Barrier Coating; Zirconia; DPV2000; particle temperature; Material technology; particle velocity;

   Abstract : The aim of this thesis is to enhance the overall understanding of the plasma spray process and increase control and reproducibility of the coating properties. This was performed by establishment of relationships between controllable process parameters, in-flight properties of the injected particles (velocity and temperature), and microstructure properties. READ MORE

5. 3. Investigation of microstructure and porosity of columnar yttria-stabilized zirconia coatings produced by axial suspension plasma spraying

   Author : Johanna Ekberg; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; X-ray microscopy; thermal barrier coatings; NMR cryoporometry; suspension plasma spraying; scanning electron microscopy; porosity measurements;

   Abstract : Ceramic topcoats provide thermal barrier coatings (TBCs) with its heat insulating properties. The heat transfer is primarily occurring by conduction through the bulk material, therefore features such as interfaces, pores and grain boundaries are essential for thermal insulation as they act as scattering sites. READ MORE

6. 4. A Study of the Adhesion Strength of Plasma Sprayed Coatings

   Author : Fouzi Bahbou; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Splat.; Surface roughness; Mechanical anchoring; Grit blasting; Adhesion strength; Protal® process; Fractal analysis; Thermal spraying; Coating; Surface pre-treatment;

   Abstract : Surface preparation prior to thermal spraying is a key factor in ensuring a good adhesion of the coating onto the part to be coated. Surface pre-treatment conditions and methods have mainly been developed experimentally and have changed little over the years. READ MORE

7. 5. A study of the adhesion strength of plasma sprayed coatings

   Author : M. Fouzi Bahbou; Högskolan Väst; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Grit blasting; Thermal spraying; Coating; Surface pre-treatment; Surface roughness; Fractal analysis; Adhesion strength; Mechanical anchoring; Protal® process; Splat; Manufacturing engineering; Produktionsteknik; Metallurgical process and manufacturing engineering; Metallurgisk process- och produktionsteknik; Manufacturing and materials engineering; Produktions- och materialteknik;

   Abstract : .... READ MORE