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Silica Aerogel vs. Cordierite

Both silica aerogel and cordierite 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 silica aerogel and the bottom bar is cordierite.

Metric UnitsUS Customary Units

Material Properties

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