Size reduction of ceramic powders by attrition milling.
Stanley DA; Sadler LY III
Particle Reduction 1973 :1-7
Attrition milling was developed by the Bureau of Mines in the early 1960's as an outgrowth of an earlier developed attrition scrubber. This type of milling is characterized by intense agitation of a grinding medium slurry in a baffled vessel by a radial-flow, concentrically mounted impeller. Attrition mills are being used commercially for producing paper-grade clays and paint pigments. Research studies are being conducted by the Bureau of Mines to extend the use of attrition milling to the preparation of submicrometer-size oxide powders suitable for the fabrication of ceramic articles. A number of the variables that influence rates of size reduction are discussed in which fluorspar, silica, calcite, dolomite, zirconia, and barium ferrite powders were milled. The effect of using spherical quartz, alumina, and zirconia milling media on contamination are described. Performance of conventional mills are compared, with the attrition type illustrating the greater efficiency of the latter.
OP; Conference/Symposia Proceedings
Particle Reduction 1973, Proc. 1st Internat. Conf. in Particle Technol., IIT Reserach Institute