| abstract |
The production method of the present invention is a method for producing porous aluminum magnesium titanate by forming a mixture containing Al source powder, Mg source powder, Ti source powder and Si source powder as well as a pore-forming agent to obtain a molded body; presintering the obtained molded body; and then sintering the presintered molded body, wherein the content of the pore-forming agent to a total of 100 parts by mass for the Al source powder, Mg source powder, Ti source powder and Si source powder is 5 to 30 parts by mass, the melting point of the Si source powder is 600 to 1300°C, when the elemental composition ratio of Al, Mg, Ti and Si in the mixture is represented by compositional formula (1): n n Al 2(1-x) Mg x Ti (1+x) O 5 + aAl 2 O 3 + bSiO 2 (1), n nx satisfies 0.05 ≤ x ≤ 0.15, a satisfies 0 ≤ a ≤ 0.1 and b satisfies 0.05 ≤ b ≤ 0.15, and the presintered molded body is sintered at 1300 to 1560°C. |