ALUMINUM TITANATE CERAMIC AND METHOD FOR MAKING THE SAME

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PROBLEM TO BE SOLVED : To provide a ceramic having aluminum titanate as a main component capable of being fired at a lower temperature, and used at a high temperature without affecting desired characteristics. SOLUTION : A method for making an aluminum titanate article comprises : formulating a batch of inorganic raw materials comprising sources of silica, alumina, and titania and sources of combinations of strontium and calcium; adding to the batch of inorganic raw materials an amount of 0.01 to 10%, as expressed on a weight percent oxide basis of a rare earth metal oxide; mixing the batch of inorganic raw materials and the rare earth metal oxide with processing aids selected from the group consisting of plasticizers, lubricants, binders, pore formers, and solvents, to form a plasticized mixture; shaping the plasticized mixture into a green body; heating the green body to a top temperature of less than 1, 500°C, with a hold time sufficient to form a predominant phase of aluminum titanate. COPYRIGHT : (C)2014, JPO&INPIT