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Silica Aerogel vs. Tungsten Carbide

Silica aerogel belongs to the oxide-based engineering ceramics classification, while tungsten carbide belongs to the non-oxide engineering ceramics. There are 11 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 silica aerogel and the bottom bar is tungsten carbide.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 0.0050
630
Poisson's Ratio 0.2
0.24
Tensile Strength: Ultimate (UTS), MPa 0.016
350

Thermal Properties

Thermal Conductivity, W/m-K 0.016
85
Thermal Expansion, µm/m-K 2.0
5.4

Otherwise Unclassified Properties

Density, g/cm3 0.1
15

Common Calculations

Stiffness to Weight: Axial, points 0.028
24
Stiffness to Weight: Bending, points 57
20
Strength to Weight: Axial, points 0.044
6.6
Strength to Weight: Bending, points 1.4
7.5
Thermal Shock Resistance, points 110
7.2