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Alumina vs. HMWPE

Alumina and HMWPE belong to fundamentally different material chemistries. Alumina is a ceramic material, while HMWPE is polymeric. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 8 material properties with values for both materials. Properties with values for just one material (19, 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 and the bottom bar is HMWPE.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 3.4 to 4.1
0.95
Dielectric Constant (Relative Permittivity) At 1 Hz 8.0 to 9.0
2.3
Elastic (Young's, Tensile) Modulus, GPa 220 to 370
0.7
Stiffness to Weight: Axial, points 35 to 53
0.41
Stiffness to Weight: Bending, points 57 to 62
31
Strength to Weight: Axial, points 14 to 23
5.0
Strength to Weight: Bending, points 19 to 28
16
Tensile Strength: Ultimate (UTS), MPa 210 to 290
17