HTP Ball Clay

Description: Low lignite Tennessee Ball Clay

Oxide	Analysis	Formula
CaO	0.30%	0.02
K2O	0.70%	0.02
MgO	0.30%	0.02
Na2O	0.10%	0.01
TiO2	1.40%	0.06
Al2O3	32.00%	1.00
SiO2	53.60%	2.84
Fe2O3	1.10%	0.02
LOI	10.50%	n/a
Oxide Weight		285.28
Formula Weight		318.75

Notes

This Gleason, Tennessee material has been used in the electrical porcelain and tile industries for many years. It has a finer particle size than many other K&T Ball clays and is thus more plastic and prone to drying cracks. However, its added whiteness and low coal and other particulates make it an attractive material.

Physical Properties
===================
Water of Plasticity*: 37.0%
% Dry Shrinkage*: 6.5
Dry M.O.R., psi:* 825
pH: 4.4
C.E.C., meq/100g: 11.0
Specific Surface Area, sq metre/g: 24.4
Soluble sulfur+: Low

P.C.E.: 32

Particle Size, Microns: 20 10 5 2 1 0.5 0.2
(% finer than) 99% 97% 93% 81% 72% 56% 35%

Fired Properties
================
Cone 5 10
----
Total Shrinkage: 13.0% 14.5%
Absorption: 10.0% 1.0%

------------------
*Extruded, 50% ball clay, 50% flint
+Low-trace to 150, Med-150-400, High-450+
**50% Clay, 50% Nepheline Syenite

Related Information

Links

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
Follow me on

Got a Question?

Buy me a coffee and we can talk