porous material

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• Porous medium — A porous medium or a porous material is a solid (often called frame or matrix) permeated by an interconnected network of pores (voids) filled with a fluid (liquid or gas). Usually both the solid matrix and the pore network (also known as the pore …   Wikipedia

• Porous point pen — A porous point pen contains a point that is made of some porous material such as felt or ceramic.A high quality drafting pen will usually have a ceramic tip, since this wears well and does not broaden when pressure is applied while writing.… …   Wikipedia

• porous — po|rous [ˈpo:rəs] adj [Date: 1300 1400; : French; Origin: poreux, from pore; PORE1] 1.) allowing liquid, air etc to pass slowly through many very small holes ▪ porous material 2.) easy to pass through or get into something ▪ the porous border… …   Dictionary of contemporary English

• 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

• Material cristalino móvil — Material Cristalino Mobil (MCM)es el nombre inicial dado a una serie de materiales mesoporosos que fueron sintetizados por vez primera por investigadores de la empresa Mobil en 1992. Las dos moléculas de mayor interés y de las cuales se tiene… …   Wikipedia Español

• porous — ► ADJECTIVE ▪ (of a rock or other material) having minute spaces through which liquid or air may pass. DERIVATIVES porosity noun. ORIGIN from Latin porus pore …   English terms dictionary

• porous — adjective (of a rock or other material) having minute interstices through which liquid or air may pass. Derivatives porosity noun porousness noun Origin ME: from OFr. poreux, based on L. porus pore …   English new terms dictionary

• 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

• Mesoporous material — A mesoporous material is a material containing pores with diameters between 2 and 50 nm. Porous materials are classified into several kinds by their size. According to IUPAC notation[1], microporous materials have pore diameters of less than …   Wikipedia

• Microporous material — A microporous material is a material containing pores with diameters less than 2 nm. Porous materials are classified into several kinds by their size. According to IUPAC notation (see J. Rouquerol et al., Pure Appl. Chem, 66 (1994) 1739… …   Wikipedia

• Orthotropic material — Wood is an example of an orthotropic material. Material properties in three perpendicular directions (axial, radial, and circumferential) are different. An orthotropic material has two or three mutually orthogonal twofold axes of rotational… …   Wikipedia