HB-11 Ball Clay

Description: Tennessee Ball Clay

Oxide	Analysis	Formula
CaO	0.20%	0.01
K2O	0.30%	0.01
MgO	0.20%	0.02
Na2O	0.10%	-
TiO2	2.20%	0.08
Al2O3	33.20%	1.00
SiO2	50.20%	2.57
Fe2O3	1.00%	0.02
LOI	12.60%	n/a
C	0.30%	n/a
Oxide Weight		268.52
Formula Weight		308.29

Notes

Particle Size (e.s.d.)
125 microns - 0.2
20 microns - 96
2 microns - 78
Modulus of Rupture at 110C
Mn/M2 - 3.9
lbf/in2 - 560
Water Absorption
1120C - 16.0
1220C - 8.0
Shrinkage Dry to Fired
1120C - 4.0
1220C - 14.0
Refractoriness
Cone - 33, 1730C

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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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