Preparation of Zirconia Fine Powder and Its Characterization Were Prepared by Chemical Precipitation Method

Abstract

The fine powders of zirconium oxide were prepared by chemical precipitation in this paper and using a single variable experiment method to study the effect of zirconium salt solution for zirconia powder granularity, each other the concentration of zirconium salt solution sample preparation were 0.1mol/L, 0.2mol/L, 0.3mol/L, 0.5mol/L, 0.8mol/L, 1mol/L, the resulting precipitate was washed, drying, grinding and calcination process can the formation of zirconia powder, and the powder particle size, the rmogravimetric and surface analysis, the results were as follows: when the zirconium salt solution concentration is 0.5mol/l, the minimum size of the particles prepared, mainly concentrated in 30μm -40μm, the total pore volume of powder was 0.1688ml/g and average pore size is 13.32nm; when the temperature reached 1140 degrees in the process of zirconia weight loss was 6.32%, indicating the good thermal stability of the material under high temperature, not easily broken down. This method is easy to operate and easy to observe in laboratory.