CA vs. Silicon Nitride
CA and silicon nitride belong to fundamentally different material chemistries. CA is a polymeric material, while silicon nitride is ceramic. 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 (24, in this case) are not shown.
For each property being compared, the top bar is CA and the bottom bar is silicon nitride.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 1.3 | |
| 2.2 to 3.4 |
| Dielectric Constant (Relative Permittivity) At 1 MHz | 3.6 | |
| 8.0 to 10 |
| Dielectric Strength (Breakdown Potential), kV/mm | 15 | |
| 18 |
| Electrical Resistivity Order of Magnitude, 10x Ω-m | 16 | |
| 11 to 12 |
| Flexural Strength, MPa | 40 to 55 | |
| 130 to 810 |
| Specific Heat Capacity, J/kg-K | 1500 | |
| 720 to 800 |
| Thermal Conductivity, W/m-K | 0.25 | |
| 12 to 31 |
| Thermal Diffusivity, mm2/s | 0.13 | |
| 7.5 to 13 |
| Thermal Expansion, µm/m-K | 14 | |
| 2.5 to 3.2 |