Sagger XX Ball Clay
Alternate Names: XX Sagger, XX Sagger Ball Clay, Saggar
| Oxide | Analysis | Formula | Tolerance |
|---|---|---|---|
| CaO | 0.50% | 0.03 | |
| K2O | 0.89% | 0.03 | |
| MgO | 0.30% | 0.03 | |
| Na2O | 0.30% | 0.02 | |
| TiO2 | 1.71% | 0.07 | |
| Al2O3 | 29.17% | 1.00 | |
| SiO2 | 56.73% | 3.30 | |
| Fe2O3 | 0.69% | 0.02 | |
| LOI | 9.71% | n/a | |
| Oxide Weight | 315.72 | ||
| Formula Weight | 349.67 | ||
Notes
A fine grained secondary clay which fires to a light cream with 13% shrinkage at cone 10. This ball clay is considered to be very effective in salt firing and it is claimed that it works well in flashing (i.e. wood firing).
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Ball Clay
Ball clays are abundant and very plastic and are used in all types of plastic forming bodies. They are not as white-burning or refractory as kaolins but lower in iron and fluxes than bentonites. |
Data
| Ultimate Particle Size Distribution | 20 microns: 99% 10: 97% 8: 94% 5: 88% 3: 79% 2: 73% 1: 60% 0.5: 45% |
|---|---|
| Pyrometric Cone Equivalent | 32.5 |
| Water absorption | Cone 5: 11% cone 10: 3% |