Hafnia vs. Tungsten Carbide

Hafnia belongs to the oxide-based engineering ceramics classification, while tungsten carbide belongs to the non-oxide engineering ceramics. There are 10 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is hafnia and the bottom bar is tungsten carbide.

Hafnia (Hafnium Oxide, HfO₂)Tungsten Carbide (WC)

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Material Properties

Density, g/cm³		9.7
Density, g/cm³		15

Elastic (Young's, Tensile) Modulus, GPa		57
Elastic (Young's, Tensile) Modulus, GPa		630

Electrical Resistivity Order of Magnitude, 10^x Ω-m		9.0
Electrical Resistivity Order of Magnitude, 10^x Ω-m		0.75

Maximum Temperature: Mechanical, °C		2800
Maximum Temperature: Mechanical, °C		1000

Specific Heat Capacity, J/kg-K		120
Specific Heat Capacity, J/kg-K		280

Stiffness to Weight: Axial, points		3.3
Stiffness to Weight: Axial, points		24

Stiffness to Weight: Bending, points		13
Stiffness to Weight: Bending, points		20

Thermal Conductivity, W/m-K		1.1
Thermal Conductivity, W/m-K		85

Thermal Diffusivity, mm²/s		0.95
Thermal Diffusivity, mm²/s		21

Thermal Expansion, µm/m-K		6.0
Thermal Expansion, µm/m-K		5.4

Hafnia vs. Tungsten Carbide

Material Properties

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