Nanocrystalline spherical ceramic oxides, process for the synthesis and use thereof

摘要

Process for the synthesis of powdered ceramic oxides spherical nanocrystalline characterized in that is carried out by detonation of an emulsion of water in oil (W / O) comprising metals, an internal oxidizer phase based on an aqueous solution of ammonium nitrate comprises metal salts of the corresponding metals dissolved therein to adjust the temperature detonation and an external phase of fuel based on organic compounds, the two phases intimately bound by a surfactant, at a temperature in the reaction zone (point C, J ( Chapman, Jouguet)) which is greater than the melting point of the oxide.