Search for dissertations about: "coatings"

Showing result 11 - 15 of 571 swedish dissertations containing the word coatings.

2. 11. Plasma spray coatings as catalysts for water splitting : exploring novel materials and strategies

   Author : Xiuyu Wu; Eduardo Gracia-Espino; Juan Carlos Nieves Sanchez; Björn Wickman; Umeå universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Plasma spray; water splitting; coatings; electrocatalyst; hydrogen evolution reaction; oxygen evolution reaction; Physical Chemistry; fysikalisk kemi;

   Abstract : Today, fossil fuels still play a dominant role in the global energy systems. However, they are depleting quickly and the combustion of them causes many environmental concerns, including global warming, air pollution, ozone layer depletion, and acid rain. READ MORE

4. 12. Triboactive Low-Friction Coatings Based on Sulfides and Carbides

   Author : Jill Sundberg; Ulf Jansson; Jochen M. Schneider; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; coatings; thin films; tribology; tungsten disulfide; transition metal dichalcogenide; nanocomposite; TiC a-C; tribofilms; PVD; XPS; HAXPES; XRD; SEM; TEM; Raman spectroscopy; nanoindentation; Kemi med inriktning mot oorganisk kemi; Chemistry with specialization in Inorganic Chemistry;

   Abstract : For sustainable development, it is highly important to limit the loss of energy and materials in machines used for transportation, manufacturing, and other purposes. Large improvements can be achieved by reducing friction and wear in machine elements, for example by the application of coatings. READ MORE

5. 13. Studies on the barrier properties of exterior wood coatings

   Author : Jan Ekstedt; KTH; []
   Keywords : Coatings; surfactants; water absorption value; EN 927; paint; additives; moisture dynamics; absorption; desorption; artificial weathering; artificial exposure; computerized tomography; MRI.;

   Abstract : Coatings for exterior wood have two basic functions. One isto give an aesthetically acceptable surface appearance andcolour. The other is to provide protection against wooddegradation by microbiological or physical attack. READ MORE

6. 14. Microstructure and plastic deformation of textured CVD alumina coatings

   Author : Siamak Shoja; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; α-Al2O3; Texture; Coatings; TKD; Plastic deformation; Deformation mechanisms; Electron microscopy; CVD;

   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

7. 15. Mechanical Behaviour of Gas Turbine Coatings

   Author : Mats Eskner; KTH; []
   Keywords : thermal barrier coatings; TBC; small punch test; miniaturised disc bending test; mdbt; spherical indentation; gas turbine coatings; NiAl; NiCoCrAlY; NiCrAlY; mechanical properties;

   Abstract : Coatings are frequently applied on gas turbine components inorder to restrict surface degradation such as corrosion andoxidation of the structural material or to thermally insulatethe structural material against the hot environment, therebyincreasing the efficiency of the turbine. However, in order toobtain accurate lifetime expectancies and performance of thecoatings system it is necessary to have a reliableunderstanding of the mechanical properties and failuremechanisms of the coatings. READ MORE