Aluminum Nitride vs. Grade XP Boron Nitride
Both aluminum nitride and grade XP boron nitride are non-oxide engineering ceramics. There are 17 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is aluminum nitride and the bottom bar is grade XP boron nitride.
Metric UnitsUS Customary Units
Mechanical Properties
| Compressive (Crushing) Strength, MPa | 2100 | |
| 21 |
| Elastic (Young's, Tensile) Modulus, GPa | 330 | |
| 14 |
| Flexural Strength, MPa | 190 to 400 | |
| 18 |
| Poisson's Ratio | 0.21 to 0.31 | |
| 0.11 |
Thermal Properties
| Maximum Temperature: Mechanical, °C | 1380 | |
| 1750 |
| Specific Heat Capacity, J/kg-K | 780 | |
| 1470 |
| Thermal Conductivity, W/m-K | 80 to 190 | |
| 96 |
| Thermal Expansion, µm/m-K | 4.2 to 5.4 | |
| 0.54 |
Electrical Properties
| Dielectric Constant (Relative Permittivity) At 1 MHz | 6.9 to 28 | |
| 4.0 |
| Dielectric Strength (Breakdown Potential), kV/mm | 15 to 56 | |
| 80 |
| Electrical Dissipation At 1 Hz | 0.0019 | |
| 0.0017 |
| Electrical Dissipation At 1 MHz | 0.00020 to 0.0010 | |
| 0.00075 |
| Electrical Resistivity Order of Magnitude, 10x Ω-m | 10 to 12 | |
| 13 |
Otherwise Unclassified Properties
| Density, g/cm3 | 2.9 to 3.3 | |
| 1.9 |
Common Calculations
| Stiffness to Weight: Axial, points | 55 to 63 | |
| 4.1 |
| Stiffness to Weight: Bending, points | 69 to 80 | |
| 42 |
| Thermal Diffusivity, mm2/s | 31 to 74 | |
| 34 |