A process for the production of nanoparticles and for the production of spherically shaped spherically shaped ceramic layers and - powder

摘要

A process for the production of nanoparticles spherically shaped in a wet chemical method is disclosed in which, in a solution of at least two organometallic starting compounds, a crosslinking and polycondensation takes place under formation of nanoparticles, characterized in that the crosslinking and polycondensation by means of a crosslinking additive promoting at temperatures significantly below 0°C, preferably less than – 30°C, more preferably less than – 60°C. and more preferably about – 90°C. is carried out.Furthermore, the use of the nanoparticle dispersions obtained for the production of oxide, preferably of piezoelectric ceramic layers and / or - powder and a method for the preparation of these oxidic, preferably piezoelectric ceramic layers and / or - powder discloses.