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MDF vs. CVD Diamond

MDF and CVD diamond belong to fundamentally different material chemistries. MDF is a polymeric material, while CVD diamond is ceramic. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 13 material properties with values for both materials. Properties with values for just one material (10, 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 MDF and the bottom bar is CVD diamond.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 4.0
1050
Poisson's Ratio 0.25
0.1
Tensile Strength: Ultimate (UTS), MPa 18
750

Thermal Properties

Specific Heat Capacity, J/kg-K 1700
500
Thermal Conductivity, W/m-K 0.3
1900
Thermal Expansion, µm/m-K 12
1.0

Otherwise Unclassified Properties

Density, g/cm3 0.75
3.5

Common Calculations

Stiffness to Weight: Axial, points 3.0
170
Stiffness to Weight: Bending, points 71
96
Strength to Weight: Axial, points 6.7
59
Strength to Weight: Bending, points 20
52
Thermal Diffusivity, mm2/s 0.24
1080
Thermal Shock Resistance, points 27
51