“…Aluminum titanate (Al 2 TiO 5 ; AT), a synthetic ceramic material, is isomorphous with pseudobrookite (Fe 2 TiO 5 ) structure in form of orthorhombic crystallographic structure, which bears the following corresponding lattice parameters of a = 3.591, b = 9.429, and c = 9.636 Å 1 . AT has a broad spectrum of superb properties: fairly low coefficient of thermal expansion (0.2–1 × 10 −6 K −1 ), 2 ultrahigh thermal shock resistance (up to 500 Wm −1 ), 3 high melting point (≈1860°C), 4 resistance to molten metal, and molten glass; hence these properties enable utilization as high‐temperature structural ceramic candidates such as ceramic components in molten metal casting under quenching and hot conditions, honeycomb ceramic exhaust filters, and catalyst support materials 5–8 . The low thermal expansion coefficient of aluminum titanate is mainly due to microcracks existing within the interior, and the microcracks matrix is triggered by the severe thermal expansion anisotropy of different crystal axes ( α a = −2.9–3.0 × 10 −6 K −1 , α b = 10.3–11.8 × 10 −6 K −1 , α c = 20.1–21.8 × 10 −6 K −1 ) 9 during the cooling stage from sintering temperature, which is in connection with poor mechanical properties 10–12 …”