Ordering in a Fluid Inert Gas Confined by Flat Surfaces Science, Vol. 296, Issue 5567, 507-510, April 19, 2002 http://www.sciencemag.org/cgi/content/full/296/5567/507 High-resolution transmission electron microscopy images of room-temperature fluid xenon in small faceted cavities in aluminum reveal the presence of three well-defined layers within the fluid at each facet. Such interfacial layering of simple liquids has been theoretically predicted, but observational evidence has been ambiguous. Molecular dynamics s imulations indicate that the density variation induced by the layering will cause xenon, confined to an approximately cubic cavity of volume 8 cubic nanometers, to condense into the body-centered cubic phase, differing from the face-centered cubic phase of both bulk solid xenon and solid xenon confined in somewhat larger (20 cubic nanometer) tetradecahedral cavities in face-centered cubic metals. Layering at the liquid-solid interface plays an important role in determining physical properties as diverse as the rheological behavior of two-dimensionally confined liquids and the dynamics of crystal growth. -- 我一天天的回去 直到一個永恆的風景 雙手在褲袋裏 發汗 在陽光下溫馴 我一天天的回去 光滑而 沒有界面 更輕易的轉身 踱步 憑我的舊涼鞋 by Patience -- ☆ [Origin:椰林風情] [From: 140.112.182.195] [Login: **] [Post: **]