BLENDED ALUMINAS TO CONTROL ALUMINUM TITANATE PROPERTIES

A method of making an aluminum titanate ceramic article including: selecting properties for the aluminum titanate-containing ceramic body to be made by the method, the selected properties include pore size, modulus of rupture (MOR), or both; selecting a fine-to-coarse weight ratio (f:c) of fine alumina particles and coarse alumina particles for a batch, the total amount of the fine and the coarse alumina particles is from 44 to 52 weight percent of the batch; forming an aluminum titanate batch mixture including the selected fine-to-coarse weight ratio (f:c) of the fine alumina particles and the coarse alumina particles; forming a green body from the batch mixture; and firing the green body to obtain an aluminum titanate-containing ceramic body having the selected properties, as defined herein.