# Aluminum Titanate (Al_{2}TiO_{5})

Aluminum titanate is an oxide-based engineering ceramic. It has the lowest fracture toughness and a fairly low thermal conductivity among oxide-based engineering ceramics. The graph bars on the material properties cards below compare aluminum titanate to other oxide-based engineering ceramics (top) and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

## Thermal Properties

Maximum Temperature: Mechanical

1250 *°C* 2280 *°F*

Thermal Conductivity

1.6 *W/m-K* 0.94 *BTU/h-ft-°F*

Thermal Expansion

2.9 *µm/m-K*

## Other Material Properties

Density

3.2 *g/cm ^{3}* 200

*lb/ft*

^{3}Elastic (Young's, Tensile) Modulus

13 *GPa* 1.8 *x 10 ^{6} psi*

Flexural Strength

29 *MPa* 4.2 *x 10 ^{3} psi*

Fracture Toughness

1.0 *MPa-m ^{1/2}* 0.91

*x 10*

^{3}psi-in^{1/2}## Common Calculations

Stiffness to Weight: Axial

2.2 *points*

Stiffness to Weight: Bending

24 *points*

## Followup Questions

## Further Reading

Springer Handbook of Condensed Matter and Materials Data, W. Martienssen and H. Warlimont (editors), 2005