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PVC-P vs. CVD Diamond

PVC-P and CVD diamond belong to fundamentally different material chemistries. PVC-P 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 14 material properties with values for both materials. Properties with values for just one material (18, 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 PVC-P and the bottom bar is CVD diamond.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 1.4
1050
Poisson's Ratio 0.39
0.1
Tensile Strength: Ultimate (UTS), MPa 16
750

Thermal Properties

Specific Heat Capacity, J/kg-K 1400
500
Thermal Conductivity, W/m-K 0.17
1900
Thermal Expansion, µm/m-K 160
1.0

Electrical Properties

Electrical Resistivity Order of Magnitude, 10x Ω-m 11
13

Otherwise Unclassified Properties

Density, g/cm3 1.4
3.5

Common Calculations

Stiffness to Weight: Axial, points 0.57
170
Stiffness to Weight: Bending, points 28
96
Strength to Weight: Axial, points 3.2
59
Strength to Weight: Bending, points 10
52
Thermal Diffusivity, mm2/s 0.090
1080
Thermal Shock Resistance, points 4.9
51