| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for producing aluminum magnesium titanate that can produce aluminum magnesium titanate having a low coefficient of thermal expansion at a firing temperature below 1,500°C. <P>SOLUTION: The method is characterized by comprising holding a precursor mixture containing a titania source powder, an alumina source powder, a magnesia source powder, and a silica source powder in a temperature range of 1,100°C to 1,350°C for not less than 3 hr, then raising the temperature of the mixture to a temperature of 1,400°C or above, and firing the mixture at the temperature. The silica source powder is preferably an alkali feldspar powder. An aluminum magnesium titanate powder can be produced by obtaining aluminum magnesium titanate according to the production method and disintegrating the obtained aluminum magnesium titanate. <P>COPYRIGHT: (C)2009,JPO&INPIT |
