Abstract: A method and apparatus for tempering material is provided. One or more liquids are atomized by at least one sprayer into droplets which are guided towards a surface of a hot material so that at least some of the droplets collide with the surface of the hot material and evaporate, thus removing thermal energy from the surface layer of the hot material. Impact members may be used to further reduce the size of the droplets. The droplets may be guided to the surface by a separate guiding gas flow.

Abstract: Process for improving the chemical durability of glass by modifying at least one surface of a glass substrate. The modification process utilizes crystalline metal oxide particles with a mean aerodynamic particle diameter of less than 1000 nm, which are at least partially embedded on and into the glass surface. Apparatus for depositing crystalline metal oxide particles on glass surface.

Abstract: The invention relates to a method and a device for structuring a surface of a material by directing at a surface to be structured (9) a particle spray structuring the surface. The invention comprises separating from the particle spray, by means of at least one impaction nozzle (7), particles larger than a determined size d2, which particles are directed at the surface to be structured (9) such that they collide with the surface, producing a structure thereon.

Abstract: The invention relates to a method and apparatus for coating an article using a spray-coating method. Coating can be produced by atomizing a fluid coating precursor material into droplets with an average diameter of 0.5 to 5 micrometres. The droplets are introduced onto the article to be coated at a velocity that exceeds the critical impaction velocity. The evaporation of the droplets can be controlled by controlling the concentration of the fluid precursor material solvent in the spray chamber.

Abstract: The invention relates to a method of modifying a surface of a glass product. The method comprises conveying particles to the surface of the glass, a material contained in the particles being at least partly dissolved and diffused in the glass. The method comprises a step of heating the surface of the glass. The invention further relates to an apparatus for modifying a surface of a hot glass product. The invention still further relates to glass products wherein the content of an element which provides the glass with a functionality decreases steplessly upon proceeding from the surface of the glass deeper into the glass.

Abstract: A method for modifying glassy surfaces including: producing nanoparticles; depositing the said nanoparticles on a surface; providing energy to the particles and/or surface so that the nanoparticles are at least partly diffused/dissolved into the glassy surface; and reducing the cohesive energy of the nanoparticles during the production of the nanoparticles or after the production of the nanoparticles.