High-alumina Refractory vs. Boron Carbide
High-alumina refractory belongs to the oxide-based engineering ceramics classification, while boron carbide belongs to the non-oxide engineering ceramics. There are 7 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.
For each property being compared, the top bar is high-alumina refractory and the bottom bar is boron carbide.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 2.1 | |
| 2.1 to 2.7 |
| Flexural Strength, MPa | 28 | |
| 170 to 410 |
| Maximum Temperature: Mechanical, °C | 1200 | |
| 1000 to 2500 |
| Specific Heat Capacity, J/kg-K | 800 | |
| 950 |
| Thermal Conductivity, W/m-K | 1.5 | |
| 31 to 90 |
| Thermal Diffusivity, mm2/s | 0.87 | |
| 16 to 38 |
| Thermal Expansion, µm/m-K | 4.3 | |
| 4.5 to 5.6 |