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Description: Tennessee Ball Clay
Oxide | Analysis | Formula | |
---|---|---|---|
CaO | 0.04% | - | |
K2O | 0.52% | 0.02 | |
MgO | 0.22% | 0.02 | |
Na2O | 0.08% | - | |
TiO2 | 1.70% | 0.08 | |
Al2O3 | 26.40% | 1.00 | |
SiO2 | 60.00% | 3.86 | |
Fe2O3 | 1.06% | 0.03 | |
LOI | 9.90% | n/a | |
Oxide Weight | 347.80 | ||
Formula Weight | 386.02 |
Crude Color: Light Grey
Dry M.O.R. (psi 50% clay/50% flint, cast bars): 519
Wet Sieve Residue, +200 mesh (%): 0.38
Water of Plasticity (%): 37
Linear Dry Shrinkage (%): 7.1
Solubles Sulfates (ppm): 229
Filtration (ml): 25
Specific Surface Area (sq meters per gram): 20.2
CEC/MBI (meq/100 ml): 10.5
pH: 5.1
PCE: 31
Firing Shrinkage (%) Cone 04: 6.1 Cone 3: 6.4 Cone 11: 8.5
Absorption (%) 10.6 8.3 3.2
Particle Size (% finer than):
50 microns: 100
20: 94
10: 87
5: 78
1: 60
0.5: 50
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. |
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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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