Publikasjoner og ansvarsområder
Deposition of silica nanoparticles onto alumina measured by optical reflectometry and quartz crystal microbalance with dissipation techniques
Synthesis and characterization of hybrid aminopropyl silane-based coatings on stainless steel substrates
Transparent and homogeneous hybrid aminopropyl silane-based coatings on steel were prepared by the sol–gel method using hydrolyzed γ-APS as a precursor. The coatings were fabricated by dip coating, and the effect of pH, water/silane ratio and solvent/silane ratio during the coating process was inves...
AFM measurements of forces between silica surfaces
Interaction forces and adhesion between a silica sphere and a flat silica surface in aqueous electrolyte solutions were investigated by atomic force microscopy. The forces were measured as a function of surface separation, pH and NaCl concentration as the surfaces were approaching each other. The ad...
Study of inexpensive oxygen carriers for chemical looping combustion
Norwegian industrial tailings and by-products, as well as naturally occurring minerals and ores have been surveyed with the purpose of identifying candidate oxygen carrier materials for use in a chemical looping combustion process. Nine materials, based on manganese and/or iron oxide, were selected ...
PARAFFIN WAX DEPOSITION STUDIES ON COATED AND NON-COATED STEEL SURFACES
A novel cold baffle wax deposition (CoBWaD) reactor is developed for studying deposition from wax rich hydrocarbon liquids. The Reactor consists of a heated jacket, to maintain the bulk temperature of the test fluid, and four PVC baffles positioned perpendicular to the cylindrical vessel wall. The b...
Hybrid coatings based on aminopropylsilane
Processing and Characterization of Diatoms for Enhanced Efficiency in Solar Cells
Processing and characterization of diatoms for enhanced efficiency in solar cells
Deposition of silica thin films formed by sol–gel method
Deposition of silica thin films on silicon wafer was investigated by in situ mass measurements with a microbalance configured for dip coating. Mass change was recorded with respect to deposition time when the substrate was fully immersed in the silica sol. Mass gain during deposition was higher than...