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Aluminum Nitride vs. CAB

Aluminum nitride and CAB belong to fundamentally different material chemistries. Aluminum nitride is a ceramic material, while CAB is polymeric. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 9 material properties with values for both materials. Properties with values for just one material (25, 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 aluminum nitride and the bottom bar is CAB.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 2.9 to 3.3
1.2
Dielectric Constant (Relative Permittivity) At 1 MHz 6.9 to 28
3.6
Dielectric Strength (Breakdown Potential), kV/mm 15 to 56
15
Electrical Resistivity Order of Magnitude, 10x Ω-m 10 to 12
16
Flexural Strength, MPa 190 to 400
21 to 57
Specific Heat Capacity, J/kg-K 780
1460
Thermal Conductivity, W/m-K 80 to 190
0.25
Thermal Diffusivity, mm2/s 31 to 74
0.14 to 0.15
Thermal Expansion, µm/m-K 4.2 to 5.4
14