| abstract |
An object of the present invention is to provide a method for producing aluminum titanate-based ceramics having a small dimensional change due to sintering at a low firing temperature of less than 1500 ° C while realizing low thermal expansion and high mechanical strength. The present invention provides a process for producing a ceramic plastic dough dough containing a precursor mixture containing titanium source powder, aluminum source powder and silicon source powder and an organic binder and molding into a predetermined shape; Method of producing aluminum titanate-based ceramics, comprising the step of maintaining the temperature change per hour at −50 to + 50 ° C./h for 3 hours or more at a temperature range of 1350 ° C., then raising the temperature to 1400 ° C. or more and sintering at the same temperature. And the porosity obtained by the said manufacturing method is an aluminum titanate type ceramic sintered compact which is 30 to 60%. |