Aluminum titanate-based ceramic article

A method of making an aluminum titanate-based ceramic body comprising:

• (a) formulating a batch of inorganic raw materials comprising sources of silica, alumina, strontium, titania, and/or iron oxide together with organic processing comprising plasticizers, lubricants, binders, and water as solvent, and mixing to form a homogeneous and plasticized mixture;
• (b) shaping the plasticized mixture into a green body;
• (c) heating the green body at 20–40° C./hr over various temperature intervals with hold temperature and times between 1100°–1650° C. for a period of 30–50 hours to develop a ceramic having a composition comprising u (Al2O3—TiO2)+v (R)+w (3Al2O3-2SiO2)+x (Al2O3)+y (SiO2)+z (1.1SrO-1.5Al2O3-13.6SiO2—TiO2)+a (Fe2O3—TiO2)+b (MgO-2TiO2), where, R is SrO—Al2O3-2SiO2 or 11.2SrO-10.9Al2O3-24.1SiO2—TiO2, where u, v, w, x, y, z, a and b are weight fractions of each component such that (u+v+w+x+y+z+a+b=1), and 0.5<u≦0.95, 0.01<v≦0.5, 0.01<w≦0.5, 0≦x≦0.5, 0≦y≦0.1, 0≦z≦0.5, 0<a≦0.3, and 0≦b≦0.3.

A ceramic article having a composition comprising Al2O3—TiO2, 3Al2O3-2SiO2, and SrO—Al2O3-2SiO2.