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Soda-lime Glass vs. Silica Aerogel

Soda-lime glass belongs to the glass and glass-ceramics classification, while silica aerogel belongs to the oxide-based engineering ceramics. There are 12 material properties with values for both materials. Properties with values for just one material (8, 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 soda-lime glass and the bottom bar is silica aerogel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70 to 71
0.0050
Poisson's Ratio 0.23
0.2
Shear Modulus, GPa 29
0.0030
Tensile Strength: Ultimate (UTS), MPa 41 to 180
0.016

Thermal Properties

Thermal Conductivity, W/m-K 1.0 to 1.1
0.016
Thermal Expansion, µm/m-K 8.8 to 9.0
2.0

Otherwise Unclassified Properties

Density, g/cm3 2.4
0.1

Common Calculations

Stiffness to Weight: Axial, points 16
0.028
Stiffness to Weight: Bending, points 56
57
Strength to Weight: Axial, points 4.6 to 20
0.044
Strength to Weight: Bending, points 11 to 28
1.4
Thermal Shock Resistance, points 4.7 to 20
110