Table 1 The properties of active alumina
From: Densification characteristics of chromia/alumina castables by particle size distribution
Property/method | Unit | CTC-20 | CTC-30 | CTC-40 |
|---|---|---|---|---|
Na2O | % | 0.12 | 0.08 | 0.08 |
Fe2O3 | % | 0.03 | 0.02 | 0.03 |
MgO | % | 0.01 | 0.04 | 0.03 |
SiO2 | % | 0.03 | 0.03 | 0.03 |
CaO | % | 0.02 | 0.02 | 0.03 |
Specific surface area/BET | m2/g | 2.1 | 3.8 | 4.8 |
D50 Cilas | μm | 1.9 | 1.8 | 1.4 |
D90 Cilas | μm | 5.4 | 6.0 | 6.0 |
Particle size distribution | Peak | Unimodal | Multimodal | Bimodal |