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Jackson Ball Clay

Oxide Analysis Formula
CaO 0.20% 0.01
K2O 0.90% 0.03
MgO 0.30% 0.03
Na2O 0.20% 0.01
TiO2 2.50% 0.11
Al2O3 30.20% 1.00
SiO2 54.50% 3.06
Fe2O3 0.80% 0.02
LOI10.70%
Oxide Weight 302.62
Formula Weight 338.88

Notes

A fine-grained, high alumina Ball Clay known for its excellent fired color, strength and plasticity. Jackson is very popular in both casting and plastic formed bodies. Ceramic applications include dinnerware, sanitaryware, artware, electrical porcelain and refractories. It is also popular in emulsion applications.

Physical Properties
===================
Water of Plasticity: 32.1%
% Dry Shrinkage: 5.0
Dry M.O.R. (50:50 ball clay:silica) psi: 604
pH: 4.2
M.B.I. (meq/100g): 7.6
Specific Surface Area (sq-meter/g): 23.3
Soluble sulfur SO4: Low
P.C.E.: 33

Particle Size, Microns: 20 10 5 2 1 0.5 0.2
(% finer than) 97% 92% 87% 76% 67% 55% 39%

Fired Properties
================
Cone 5 10
----
Total Shrinkage: 12.7% 15.6%
Absorption: 11.6% 5.0%

*This info is from a data sheet dated Jan 2013

Related Information

Links

Materials Ball Clay
Suppliers K&T Clays
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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