2024 Aluminum vs. Calcium Fluoride
2024 aluminum and calcium fluoride belong to fundamentally different material chemistries. 2024 aluminum is a metal, while calcium fluoride is a ceramic material. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 11 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 2024 aluminum and the bottom bar is calcium fluoride.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 71 | |
| 80 |
| Poisson's Ratio | 0.33 | |
| 0.26 |
| Shear Modulus, GPa | 27 | |
| 34 |
Thermal Properties
| Melting Onset (Solidus), °C | 500 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 880 | |
| 860 |
| Thermal Conductivity, W/m-K | 120 | |
| 9.7 |
| Thermal Expansion, µm/m-K | 23 | |
| 19 |
Otherwise Unclassified Properties
| Density, g/cm3 | 3.0 | |
| 3.2 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 46 | |
| 45 |
| Thermal Diffusivity, mm2/s | 46 | |
| 3.5 |