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Ceria (Cerium Oxide, CeO2)

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 103 psi

Elastic (Young's, Tensile) Modulus

180 GPa 26 x 106 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


7.6 g/cm3 470 lb/ft3

Electrical Resistivity Order of Magnitude

4.0 10x 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