Rex Ball Clay

Description: Tennessee Ball Clay

Oxide	Analysis	Formula
CaO	0.10%	0.01
K2O	1.60%	0.06
MgO	0.30%	0.03
Na2O	0.10%	0.01
TiO2	1.90%	0.08
Al2O3	29.30%	1.00
SiO2	56.40%	3.27
Fe2O3	0.80%	0.02
LOI	9.50%	n/a
C	0.10%	n/a
Oxide Weight		315.05
Formula Weight		348.51

Notes

Particle Size (e.s.d.)
125 microns - 0.3
20 microns - 97
2 microns - 65
.5 microns - 35
Modulus of Rupture at 110C
Mn/M2 - 2.2
lbf/in2 - 320
Water Absorption
1120C - 15.0
1220C - 4.0
Shrinkage Dry to Fired
1120C - 8.0
1220C - 12.0
Refractoriness
Cone - 32, 1710C

Related Information

Links

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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