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Cordierite vs. Silica Aerogel

Both cordierite and silica aerogel are oxide-based engineering ceramics. There are 10 material properties with values for both materials. Properties with values for just one material (12, 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 cordierite and the bottom bar is silica aerogel.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 2.0 to 2.2
0.1
Elastic (Young's, Tensile) Modulus, GPa 62
0.0050
Stiffness to Weight: Axial, points 15 to 17
0.028
Stiffness to Weight: Bending, points 59 to 67
57
Strength to Weight: Axial, points 24 to 27
0.044
Strength to Weight: Bending, points 33 to 38
1.4
Tensile Strength: Ultimate (UTS), MPa 190
0.016
Thermal Conductivity, W/m-K 1.3 to 1.7
0.016
Thermal Expansion, µm/m-K 2.9 to 4.8
2.0
Thermal Shock Resistance, points 47 to 78
110