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Kentucky #5 Bond

Description: Kentucky Ball Clay

Oxide Analysis Formula Tolerance
CaO 0.40% 0.02
K2O 1.20% 0.04
MgO 0.40% 0.03
Na2O 0.20% 0.01
TiO2 1.80% 0.08
Al2O3 29.70% 1.00
SiO2 55.40% 3.17
Fe2O3 1.00% 0.02
LOI 7.10%n/a
Oxide Weight 309.43
Formula Weight 333.08

Notes

An intermediate-grained,high-alumina ball clay used primarily in the refractories and abrasives industries.

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

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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