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Description: Devon Standard Ball Clay
| Oxide | Analysis | Formula | Tolerance |
|---|---|---|---|
| CaO | 0.10% | 0.01 | |
| K2O | 2.10% | 0.09 | |
| MgO | 0.40% | 0.04 | |
| Na2O | 0.20% | 0.01 | |
| TiO2 | 1.30% | 0.07 | |
| Al2O3 | 25.10% | 1.00 | |
| SiO2 | 62.40% | 4.22 | |
| Fe2O3 | 1.00% | 0.03 | |
| LOI | 7.40% | n/a | |
| C | 0.10% | n/a | |
| Oxide Weight | 376.30 | ||
| Formula Weight | 406.81 | ||
Particle Size (e.s.d.)
125 microns - 0.50
10 microns - 90
2 microns - 62
1 microns - 50
Modulus of Rupture at 110C
Mn/M2 - 3.1
lbf/in2 - 450
Defloculant Required - (3:1 Na2SiO3(C.100):Na2CO3) - 0.2
Water Absorption
1120C - 9.0
1220C - 0.00
Shrinkage Dry to Fired
1120C - 9.00
1220C - 13.50
Reflectance 464nm
1120C - 60
1220C - 44
Refractoriness
Cone - 30, 1670C
| Materials |
Ball Clay
A fine particled highly plastic secondary clay used mainly to impart plasticity to clay and porcelain bodies and to suspend glaze, slips and engobe slurries. |
| 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. |
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