Alumina hollow ball products

Detailed introduction to Alumina hollow ball products:

Alumina hollow ball products

The hollow alumina ball preparing process features using industrially produced aluminum powder as initial material and basing on wet chemical process. The preparation process forms hollow alumina ball in two stages, including the first stage of forming composite particle with AlOOH.nH2O coated Al and the second stage of calcining the composite particle at 1000-1100 deg.c to form hollow alumina ball. Under optimized condition, hollow alumina ball of diameter 0.1-50 micons and wall thickness 100-300 nm may be produced. Compared with available technology, the present invention has the features of controllable size of hollow alumina ball, homogeneous wall thickness, high yield, simple process, low cost and being suitable for industrial production