44-B Ball Clay

Description: Kentucky Ball Clay

Oxide	Analysis	Formula
CaO	0.12%	0.01
K2O	0.88%	0.04
MgO	0.23%	0.02
Na2O	0.09%	0.01
TiO2	1.53%	0.08
Al2O3	25.80%	1.00
SiO2	60.00%	3.95
Fe2O3	1.03%	0.03
LOI	10.10%	n/a
Oxide Weight		354.55
Formula Weight		394.38

Notes

Crude Color: Light Grey
Dry M.O.R. (psi 50% clay/50% flint, cast bars): 600
Wet Sieve Residue, +200 mesh (%): 0.65
Water of Plasticity (%): 33
Linear Dry Shrinkage (%): 6.3
Solubles Sulfates (ppm): 530
Filtration (ml): 19
Specific Surface Area (sq meters per gram): 19.2
CEC/MBI (meq/100 ml): 10.0
pH: 6.3
PCE: 30

Firing Shrinkage (%)
Cone 04: 3.7
Cone 3: 5.6
Cone 11: 6.6

Absorption (%)
Cone 04: 13.5
Cone 3: 8.4
Cone 11: 2.1

Particle Size (% finer than):
50 microns: 100
20: 97
10: 93
5: 82
1: 57
0.5: 45

Related Information

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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.

By Tony Hansen
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