# Ceria (Cerium Oxide, CeO_{2})

Ceria is an oxide-based engineering ceramic. It has a very high density and a fairly low heat capacity among oxide-based engineering ceramics. The graph bars on the material properties cards below compare ceria 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.

## Mechanical Properties

Compressive (Crushing) Strength

590 *MPa* 86 *x 10 ^{3} psi*

Elastic (Young's, Tensile) Modulus

180 *GPa* 26 *x 10 ^{6} psi*

## Thermal Properties

Maximum Temperature: Mechanical

1900 *°C* 3450 *°F*

Melting Onset (Solidus)

2340 *°C* 4240 *°F*

Specific Heat Capacity

390 *J/kg-K* 0.093 *BTU/lb-°F*

Thermal Expansion

11 *µm/m-K*

## Other Material Properties

Density

7.6 *g/cm ^{3}* 470

*lb/ft*

^{3}Electrical Resistivity Order of Magnitude

4.0 *10 ^{x} Ω-m*

## Common Calculations

Stiffness to Weight: Axial

13 *points*

Stiffness to Weight: Bending

25 *points*

## Followup Questions

## Further Reading

Ceramics and Composites: Processing Methods, Narottam P. Bansal and Aldo R. Boccaccini (editors), 2012

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

CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015