Alumina vs. Wollastonite
Both alumina and wollastonite are oxide-based engineering ceramics. There are 7 material properties with values for both materials. Properties with values for just one material (19, in this case) are not shown.
For each property being compared, the top bar is alumina and the bottom bar is wollastonite.
Metric UnitsUS Customary Units
Material Properties
| Compressive (Crushing) Strength, MPa | 1920 to 2750 | |
| 260 |
| Density, g/cm3 | 3.4 to 4.1 | |
| 2.8 |
| Dielectric Constant (Relative Permittivity) At 1 MHz | 7.8 to 11 | |
| 3.5 |
| Dielectric Strength (Breakdown Potential), kV/mm | 8.9 to 12 | |
| 6.0 |
| Flexural Strength, MPa | 260 to 430 | |
| 100 |
| Maximum Temperature: Mechanical, °C | 650 to 1730 | |
| 1200 |
| Thermal Conductivity, W/m-K | 14 to 30 | |
| 0.8 |