abstract |
The invention is to provide a novel process for producing aluminum titanate-based ceramics having a low coefficient of thermal expansion. The invention is a process for producing an aluminum titanate-based ceramic comprising firing a starting material mixture containing a titanium source powder, an aluminum source powder and a silicon source powder, wherein the particle diameter corresponding to a cumulative percentage of 50 % (D50) on a volume basis of the silicon source powder is not greater than 5 µm. The invention includes the process wherein the starting material mixture further contains a magnesium source powder. |