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Alumina-lime-silica Glass vs. Cork

Alumina-lime-silica glass and cork belong to fundamentally different material chemistries. Alumina-lime-silica glass is a ceramic material, while cork is polymeric. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 6 material properties with values for both materials. Properties with values for just one material (16, 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 alumina-lime-silica glass and the bottom bar is cork.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 2.8
0.15
Dielectric Strength (Breakdown Potential), kV/mm 34
1.5
Elastic (Young's, Tensile) Modulus, GPa 90
0.020
Stiffness to Weight: Axial, points 18
0.074
Stiffness to Weight: Bending, points 53
60
Thermal Expansion, µm/m-K 4.3
200