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二氧化硅气凝胶的小角X光散射研究
引用本文:沈军,王珏. 二氧化硅气凝胶的小角X光散射研究[J]. 光散射学报, 1995, 0(Z1)
作者姓名:沈军  王珏
作者单位:同济大学波耳固体物理研究所
摘    要:二氧化硅气凝胶的小角X光散射研究沈军,王珏(同济大学波耳固体物理研究所上海200092)TheStructuralinvestigationofSilicAerogelsViaSmallAngleX-RayScattering¥ShenJunandW...


The Structural investigation of Silic Aerogels Via Small Angle X-Ray Scattering
Abstract:Abstract Silica aerogels were prepared through a sol-gel process with TEOS followed by supercritical drying with respect to CO_2. Samples of different den-sities, different catalyst conditions and other different preparation circum-stances were investigated via small-angle X-ray scattering (SAXS); The pow-er-law dependence of the scattered intensity, a characteristic of fractal struc-tures, was observed for the acid, neutral and base catalyzed aerogels. Oxida-tion of the samples proved to only smooth the surface of the primary particles,it do not influence the aerogels structures.
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