- HYDROTHERMAL PROCESSING IN THE WET-CHEMICAL PREPARATION OF MIXED METAL OXIDE CERAMIC POWDERS

摘要

A method of forming an at least partially crystalline ceramic powder includes providing mixed metal oxide particles in an aqueous suspension in a water heat treatment vessel; Heating the aqueous suspension at a temperature of at least 150 0 C and a processing pressure of at least 200 psi; And a step of heating and discharging steam from the hydrothermal treatment vessel and adding an aqueous solution having a temperature of 100 ° C or lower to the hydrothermal treatment vessel.