Limestone vs. Aluminum Nitride
Limestone belongs to the natural stone classification, while aluminum nitride belongs to the non-oxide engineering ceramics. There are 12 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is limestone and the bottom bar is aluminum nitride.
Metric UnitsUS Customary Units
Mechanical Properties
| Compressive (Crushing) Strength, MPa | 700 | |
| 2100 |
| Elastic (Young's, Tensile) Modulus, GPa | 77 | |
| 330 |
| Poisson's Ratio | 0.25 | |
| 0.21 to 0.31 |
Thermal Properties
| Maximum Temperature: Mechanical, °C | 360 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 920 | |
| 780 |
| Thermal Conductivity, W/m-K | 2.1 | |
| 80 to 190 |
| Thermal Expansion, µm/m-K | 8.0 | |
| 4.2 to 5.4 |
Electrical Properties
| Dielectric Strength (Breakdown Potential), kV/mm | 8.0 | |
| 15 to 56 |
Otherwise Unclassified Properties
| Density, g/cm3 | 2.6 | |
| 2.9 to 3.3 |
Common Calculations
| Stiffness to Weight: Axial, points | 16 | |
| 55 to 63 |
| Stiffness to Weight: Bending, points | 55 | |
| 69 to 80 |
| Thermal Diffusivity, mm2/s | 0.88 | |
| 31 to 74 |