PREPARATION OF UNIFORM LITHIUM TANTALATE SPHERICAL PARTICLES BY TWO DIFFERENT AEROSOL PROCESSES

摘要

The preparation of spherical particles of controlled size by chemical reactions in aerosol has been extended to the elaboration of mixed binary oxides. Two elaboration routes have been investigated: an aerosol route and a mixed aerosol-organometallic route. In the two cases, lithium tantalate compounds have been prepared but the chemical reactions involved are different for the two routes. Reaction mechanisms which enable an interpretation of the experimental results are proposed. [References: 42]