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Ceria vs. Silicon Nitride

Ceria belongs to the oxide-based engineering ceramics classification, while silicon nitride belongs to the non-oxide engineering ceramics. There are 9 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is ceria and the bottom bar is silicon nitride.

Metric UnitsUS Customary Units

Material Properties

Compressive (Crushing) Strength, MPa 590
600 to 2950
Density, g/cm3 7.6
2.2 to 3.4
Elastic (Young's, Tensile) Modulus, GPa 180
140 to 310
Electrical Resistivity Order of Magnitude, 10x Ω-m 4.0
11 to 12
Maximum Temperature: Mechanical, °C 1900
1000 to 1330
Specific Heat Capacity, J/kg-K 390
720 to 800
Stiffness to Weight: Axial, points 13
34 to 53
Stiffness to Weight: Bending, points 25
65 to 78
Thermal Expansion, µm/m-K 11
2.5 to 3.2