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Hafnia vs. Aluminum Titanate

Both hafnia and aluminum titanate are oxide-based engineering ceramics. There are 7 material properties with values for both materials. Properties with values for just one material (6, 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 aluminum titanate.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 9.7
3.2
Elastic (Young's, Tensile) Modulus, GPa 57
13
Maximum Temperature: Mechanical, °C 2800
1250
Stiffness to Weight: Axial, points 3.3
2.2
Stiffness to Weight: Bending, points 13
24
Thermal Conductivity, W/m-K 1.1
1.6
Thermal Expansion, µm/m-K 6.0
2.9