From colloidal-silica sols to aerogels and xerogels
نویسندگان
چکیده
منابع مشابه
From colloidal-silica sols to aerogels and xerogels
By destabilization of quasi-monodisperse silica sols, fractal clusters can be obtained. Solvent evacuation gives a porous solid with fractal structure. Structural investigations of these colloidal aerogels by small-angle neutron scattering are presented, and compared to similar observations in concentrated sols and xerogels. An investigation of the vibrational modes of these materials by inelas...
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Colloidal suspensions are used to generate polymers or particles from which ceramic materials can be made by the sol-gel process. The precursors for preparation of a colloidal suspension consist of a metal element surrounded by various ligands (attached groups not including another metal). For example, common precursors for sol-gel synthesis of aluminum oxide include inorganic salts such as Al(...
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ژورنال
عنوان ژورنال: Le Journal de Physique IV
سال: 1992
ISSN: 1155-4339
DOI: 10.1051/jp4:1992216