High-alumina Refractory vs. Mullite
Both high-alumina refractory and mullite are oxide-based engineering ceramics. There are 8 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.
For each property being compared, the top bar is high-alumina refractory and the bottom bar is mullite.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 2.1 | |
| 2.7 to 3.0 |
| Flexural Strength, MPa | 28 | |
| 130 to 160 |
| Maximum Temperature: Mechanical, °C | 1200 | |
| 1680 |
| Maximum Thermal Shock, °C | 210 | |
| 170 to 230 |
| Specific Heat Capacity, J/kg-K | 800 | |
| 950 |
| Thermal Conductivity, W/m-K | 1.5 | |
| 3.5 to 11 |
| Thermal Diffusivity, mm2/s | 0.87 | |
| 1.4 to 3.7 |
| Thermal Expansion, µm/m-K | 4.3 | |
| 5.8 |