porous surface

См. также в других словарях:

• Porous silicon — (pSi) is a form of the chemical element silicon which has an introduced nanoporous holes in its microstructure, rendering a large surface to volume ratio in the order of 500m2/cm3. History Porous silicon was first discovered by accident in 1956… …   Wikipedia

• Surface area to volume ratio — In chemical reactions involving a solid material, the surface area to volume ratio is an important factor for the reactivity, that is, the rate at which the chemical reaction will proceed. In some industries it is abbreviated sa/vol.Physical… …   Wikipedia

• surface-active agent — /serr fis ak tiv/, Chem. any substance that when dissolved in water or an aqueous solution reduces its surface tension or the interfacial tension between it and another liquid. Also called surfactant. * * * ▪ chemistry also called  Surfactant,  … …   Universalium

• Nuclear magnetic resonance in porous media — Nuclear magnetic resonance (NMR) in porous media covers the application of using NMR as a tool to study the structure of porous media and various processes occurring in them.[1] This technique allows the determination of characteristics such as… …   Wikipedia

• Solid surface — is a man made material usually composed of marble dust, bauxite, acrylic or polyester resins and pigments. It is most frequently used for seamless countertop installations. Contents 1 Performance characteristics 2 Availability …   Wikipedia

• Impervious surface — Impervious surfaces are mainly artificial structures, such as pavements, rooftops, sidewalks, roads, and parking lots covered by impenetrable materials such as asphalt, concrete, brick, and stone. Soils compacted by urban development are also… …   Wikipedia

• Specific surface area — is a material property of solids which measures the total surface area per unit of mass [http://goldbook.c60.kiev.ua/S05806.pdf IUPAC Compendium of Chemical Terminology 2nd Edition (1997)] , solid or bulk volume… …   Wikipedia

• Air permeability specific surface — The air permeability specific surface of a powder material is a single parameter measurement of the fineness of the powder. The specific surface is derived from the resistance to flow of air (or some other gas) through a porous bed of the powder …   Wikipedia

• Saturated-surface-dry — is defined as the condition of an aggregate particle or other porous solid when:* All permeable voids are filled with water * All exposed surfaces are dryIn this condition aggregates will not affect the free water content of a composite… …   Wikipedia

• Permeable paving — Permeable paving, is different than pervious paving or porous pavement, by virtue of the fact that rainwater passes around the paver as opposed to passing through the paver helping to reduce or eliminate clogging found in pervious or porous… …   Wikipedia

• Anodizing — Anodizing, or anodising, is an electrolytic passivation process used to increase the thickness of the natural oxide layer on the surface of metal parts. Anodizing increases corrosion resistance and wear resistance, and provides better adhesion… …   Wikipedia