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Silica Aerogel vs. Yttria

Both silica aerogel and yttria are oxide-based engineering ceramics. There are 6 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 yttria.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 0.1
5.0
Elastic (Young's, Tensile) Modulus, GPa 0.0050
120
Stiffness to Weight: Axial, points 0.028
13
Stiffness to Weight: Bending, points 57
32
Thermal Conductivity, W/m-K 0.016
0.3
Thermal Expansion, µm/m-K 2.0
8.0