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Hafnia vs. Soda-lime Glass

Hafnia belongs to the oxide-based engineering ceramics classification, while soda-lime glass belongs to the glass and glass-ceramics. There are 9 material properties with values for both materials. Properties with values for just one material (13, 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 hafnia and the bottom bar is soda-lime glass.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 9.7
2.4
Elastic (Young's, Tensile) Modulus, GPa 57
70 to 71
Maximum Temperature: Mechanical, °C 2800
300
Specific Heat Capacity, J/kg-K 120
720 to 800
Stiffness to Weight: Axial, points 3.3
16
Stiffness to Weight: Bending, points 13
56
Thermal Conductivity, W/m-K 1.1
1.0 to 1.1
Thermal Diffusivity, mm2/s 0.95
0.51 to 0.6
Thermal Expansion, µm/m-K 6.0
8.8 to 9.0