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Prestige AK
Alternate Names: Prestige Ball Clay
Description: Ball clay
| Oxide | Analysis | Formula | Tolerance |
|---|---|---|---|
| SiO2 | 51.50% | 2.77 | |
| Al2O3 | 31.50% | 1.00 | |
| TiO2 | 1.00% | 0.04 | |
| Fe2O3 | 1.10% | 0.02 | |
| CaO | 0.10% | 0.01 | |
| MgO | 0.30% | 0.02 | |
| K2O | 1.90% | 0.07 | |
| Na2O | 0.30% | 0.02 | |
| LOI | 1.90% | n/a | |
| Oxide Weight | 283.98 | ||
| Formula Weight | 322.71 | ||
Notes
A composite blend clay specially formulated for porous earthenware. Suitable also for many engobe recipes.
Related Information
Links
| Minerals |
Kaolinite
The most fundamental clay mineral. This mineral is found in nature in its purest form as kaolin. How |
| Minerals |
Quartz
Quartz is the most abundant mineral on earth, it is the main crystalline mineral form of silica (SiO |
| Minerals |
Potash Mica
|
| Minerals |
Soda Mica
|
| Typecodes |
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
| Sieve Analysis Wet | 0.3% residue on 125 µm screen |
|---|---|
| Co-efficient of Linear Expansion | 49 x 10-7 (25C-500C prefired at 1200C) |
| Ultimate Particle Size Distribution | 1 micron: 73% underside 2 microns: 81% 5 microns: 92% 10 microns: 95% 20 microns: 98% |
| Modulus of Rupture - Fired | 63.2 kgf/cm2 |
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