| abstract |
An aluminum titanate-based ceramic powder having a very sharp particle size distribution in which the generation of fine and coarse components is suppressed is provided. A step of holding a precursor mixture containing a titania source powder, an alumina source powder, and a silica source powder in a temperature range of 1100 ° C. to 1350 ° C. for 3 hours or more, and raising the temperature to 1400 ° C. or more to the same temperature Firing the aluminum titanate ceramic body, and crushing and classifying the aluminum titanate ceramic body, the crushing and classification step after crushing the aluminum titanate ceramic body The step (A) of obtaining a powder having a predetermined particle size or less by classifying the pulverized product, and the pulverized product is classified again after the remainder of the pulverized product is classified to obtain a powder having a particle size of a predetermined particle size or less. It is a manufacturing method of the aluminum titanate ceramic powder provided with a process (B). [Selection figure] None |