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Tennessee #9 Ball Clay

Alternate Names: Tenn #9, Tennessee #9

Description: Tennessee Ball Clay, very light firing ball clay

Oxide Analysis Formula
CaO 0.20% 0.01
K2O 1.30% 0.04
MgO 0.30% 0.02
Na2O 0.20% 0.01
TiO2 3.00% 0.12
Al2O3 31.50% 1.00
SiO2 53.20% 2.87
Fe2O3 0.60% 0.01
LOI 10.10%n/a
Oxide Weight 292.40
Formula Weight 325.25

Notes

Physical Properties
===================
Water of Plasticity: 29.9%
% Dry Shrinkage: 4.7
Dry M.O.R. (50:50 ball clay:silica, psi): 550
pH: 4.1
M.B.I. (meq/100g): 6.5
Specific Surface Area (sq-meter/g): 19.7
Soluble sulphur SO4: Low

P.C.E.: 33

Particle Size, Microns: 20 10 5 2 1 0.5
(% finer than) 97% 88% 83% 69% 62% 49%

Fired Properties
================
Cone 5 10
Total Shrinkage: 11.0% 13.9%
Absorption: 11.6% 5.8%

*This info is from a data sheet from Jan 2013

Related Information

Links

Materials RG1 Ball Clay
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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