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90-platinum 10-iridium vs. Tungsten Carbide

90-platinum 10-iridium and tungsten carbide belong to fundamentally different material chemistries. 90-platinum 10-iridium is a metal, while tungsten carbide is a ceramic material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 11 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is 90-platinum 10-iridium and the bottom bar is tungsten carbide.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
630
Poisson's Ratio 0.38
0.24
Tensile Strength: Ultimate (UTS), MPa 330 to 550
350

Thermal Properties

Specific Heat Capacity, J/kg-K 130
280
Thermal Expansion, µm/m-K 8.6
5.4

Otherwise Unclassified Properties

Density, g/cm3 22
15

Common Calculations

Stiffness to Weight: Axial, points 5.3
24
Stiffness to Weight: Bending, points 9.1
20
Strength to Weight: Axial, points 4.2 to 7.1
6.6
Strength to Weight: Bending, points 4.9 to 6.9
7.5
Thermal Shock Resistance, points 13 to 22
7.2