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Yttria vs. Tungsten Carbide

Yttria 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 (11, 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 yttria and the bottom bar is tungsten carbide.

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Material Properties

Compressive (Crushing) Strength, MPa 390
4780
Density, g/cm3 5.0
15
Elastic (Young's, Tensile) Modulus, GPa 120
630
Maximum Temperature: Mechanical, °C 2000
1000
Specific Heat Capacity, J/kg-K 440
280
Stiffness to Weight: Axial, points 13
24
Stiffness to Weight: Bending, points 32
20
Thermal Conductivity, W/m-K 0.3
85
Thermal Diffusivity, mm2/s 0.14
21
Thermal Expansion, µm/m-K 8.0
5.4