HTP Ball Clay
Description: Low lignite Tennessee Ball Clay
| Oxide | Analysis | Formula | Tolerance |
|---|---|---|---|
| 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. |
 PayPal | No tracking, No ads, No paywall, No transient content! Just organized, concise information constantly updated and improved. Was this helpful? Consider supporting me. |
| By Tony Hansen Follow me on        |  |
Got a Question?
Buy me a coffee and we can talk 
https://digitalfire.com, All Rights Reserved
Privacy Policy