High-alumina Refractory vs. Fused Silica
High-alumina refractory belongs to the oxide-based engineering ceramics classification, while fused silica belongs to the glass and glass-ceramics. There are 7 material properties with values for both materials. Properties with values for just one material (20, in this case) are not shown.
For each property being compared, the top bar is high-alumina refractory and the bottom bar is fused silica.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 2.1 | |
| 2.2 |
| Flexural Strength, MPa | 28 | |
| 67 |
| Maximum Temperature: Mechanical, °C | 1200 | |
| 1080 |
| Specific Heat Capacity, J/kg-K | 800 | |
| 720 |
| Thermal Conductivity, W/m-K | 1.5 | |
| 1.4 |
| Thermal Diffusivity, mm2/s | 0.87 | |
| 0.85 |
| Thermal Expansion, µm/m-K | 4.3 | |
| 0.5 |