SiAlON vs. Zamak 3
SiAlON and Zamak 3 belong to fundamentally different material chemistries. SiAlON is a ceramic material, while Zamak 3 is a metal. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 18 material properties with values for both materials. Properties with values for just one material (23, in this case) are not shown.
For each property being compared, the top bar is SiAlON and the bottom bar is Zamak 3.
Metric UnitsUS Customary Units
Mechanical Properties
| Compressive (Crushing) Strength, MPa | 2620 | |
| 410 |
| Elastic (Young's, Tensile) Modulus, GPa | 290 | |
| 86 |
| Fracture Toughness, MPa-m1/2 | 6.3 | |
| 12 |
| Knoop Hardness | 1700 | |
| 110 |
| Poisson's Ratio | 0.23 | |
| 0.25 |
| Shear Modulus, GPa | 120 | |
| 33 |
| Tensile Strength: Ultimate (UTS), MPa | 190 | |
| 280 |
Thermal Properties
| Maximum Temperature: Mechanical, °C | 1200 | |
| 95 |
| Specific Heat Capacity, J/kg-K | 880 | |
| 410 |
| Thermal Conductivity, W/m-K | 19 | |
| 110 |
| Thermal Expansion, µm/m-K | 3.6 | |
| 27 |
Otherwise Unclassified Properties
| Density, g/cm3 | 3.3 | |
| 6.4 |
Common Calculations
| Stiffness to Weight: Axial, points | 50 | |
| 7.5 |
| Stiffness to Weight: Bending, points | 67 | |
| 23 |
| Strength to Weight: Axial, points | 16 | |
| 12 |
| Strength to Weight: Bending, points | 22 | |
| 15 |
| Thermal Diffusivity, mm2/s | 6.4 | |
| 43 |
| Thermal Shock Resistance, points | 13 | |
| 8.6 |