METHOD FOR PRODUCING ALUMINUM TITANATE CERAMIC

摘要

The invention is to provide a process for producing an aluminium titanate ceramic by firing a pre-mixture of a titania source powder, an alumina source powder and a magnesia source powder, for a short period of time. The production process of the invention comprises mixing a titania source powder and an alumina source powder followed by dry process grinding in the presence of grinding media under a grinding condition of an acceleration of at least 2G to give a pre-mixture, and firing the resulting pre-mixture. The titania source powder and the alumina source powder may be mixed together with a magnesia source powder and a silica source powder. Preferably, a vibration mill is used for the grinding. Grinding the aluminium titanate ceramic produced according to the production process of the invention gives an aluminium titanate ceramic powder.