Niobium (Nb pure >99.9%) vs Silica Refractory Brick (>93% SiO2)
Property comparison of Niobium (Nb pure >99.9%) and Silica Refractory Brick (>93% SiO2), both refractory.
| Property | Niobium (Nb pure >99.9%) | Silica Refractory Brick (>93% SiO2) | Difference |
|---|---|---|---|
| Elastic modulus | 105,000 MPa | 40,000 MPa | -62% |
| Poisson ratio | 0.4 | 0.2 | -50% |
| Density | 8,570 kg/m³ | 1,900 kg/m³ | -78% |
| Thermal conductivity | 54 W/m·K | 1.5 W/m·K | -97% |
| Specific heat | 265 J/kg·K | 753 J/kg·K | +184% |
| Coefficient of thermal expansion | 0.000007 1/K | 0.000012 1/K | +64% |
Difference is Silica Refractory Brick (>93% SiO2) relative to Niobium (Nb pure >99.9%). Values are taken from the representative row of each material; both materials may have multiple heat treatments or conditions on their individual pages.
Identification
- grade
- R04200
- standard
- CRC Handbook of Chemistry and Physics 103rd Ed. / ASTM B392
- heat treatment
- annealed
- grade
- —
- standard
- ASTM
- heat treatment
- —
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