Silicon Nitride vs. GM-120 Glass Ceramic
Silicon nitride belongs to the non-oxide engineering ceramics classification, while GM-120 glass ceramic belongs to the glass and glass-ceramics. There are 10 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is silicon nitride and the bottom bar is GM-120 glass ceramic.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 2.2 to 3.4 | |
| 2.5 |
| Dielectric Strength (Breakdown Potential), kV/mm | 18 | |
| 11 |
| Elastic (Young's, Tensile) Modulus, GPa | 140 to 310 | |
| 56 |
| Electrical Resistivity Order of Magnitude, 10x Ω-m | 11 to 12 | |
| 10 |
| Flexural Strength, MPa | 130 to 810 | |
| 57 |
| Maximum Thermal Shock, °C | 290 to 750 | |
| 110 |
| Stiffness to Weight: Axial, points | 34 to 53 | |
| 13 |
| Stiffness to Weight: Bending, points | 65 to 78 | |
| 52 |
| Thermal Conductivity, W/m-K | 12 to 31 | |
| 3.0 |
| Thermal Expansion, µm/m-K | 2.5 to 3.2 | |
| 9.5 |