Digitalfire Ceramic Materials Database

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Pioneer Kaolin

Medium plasticity kaolin

Chemistry %

CaO	0.20
MgO	0.10
Na2O	0.10
TiO2	1.40
Al2O3	38.30
SiO2	45.40
Fe2O3	0.40

Volatiles %

LOI

13.96

Pioneer clay is used in pressing, casting and extruding bodies. Its fires fairly white and provides moderate to good dry strength. Its chemistry is very close to theoretical kaolin.

Pioneer Kaolin has been a standard for many years in the North American ceramic industry and bodies and glazes.

Typical physical properties as per data sheet TD-49R

Particle size, % < 2 microns 55-65
Mean particle size (microns) 1.0-1.2
325 mesh residue, % max .75
pH, 20% solids 4.0-6.5
Strength (dry M.O.R.), psi
-50:50 clay:flint 300-400
Cone 10 (M.O.R.), psi
-50:50 clay:flint 2500-3000
Cone 10 absorption, % 18-20
Moisture, % max 3.0
Color (fired), Cone 8 100% clay
-brightness, % MgO 85.1
-whiteness index 18.8
P.C.E. Cone 34
C.E.C. (meq./100g) 4.5-5.5

Out Bound Links

(Materials - Unspecified) EP Kaolin - Plastic White Firing Kaolin
EPK, Edgar Plastic Kaolin, EPK Kaolin
(Materials - Parent) Kaolin - Al2O3.2SiO2 or Al2Si2O5(OH)4 - Hydrated alumina silicate, Pure clay mineral
China Clay
(Typecodes - Type) 1: KAO - Kaolin
(MDT) North America
The decision about what materials to include in th...
(MDT) Asia
All of Asia including Turkey, Russia, Indosnesia, ...
(MDT) Crystal Glazes
These materials are specially defined for makers o...
(MDT) Ron Roy
This is the traditional Ron Roy materials file. He...
(MDT) Latin and South America
Latin America and South America. We are working on...
(MDT) Europe
Countries of Eastern Europe and former Soviet Unio...

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?>
<material name="Pioneer Kaolin" descrip="Medium plasticity kaolin" searchkey="Georgia Kaolin" loi="0.00" casnumber="95077-05-7">
<oxides>
<oxide symbol="CaO" name="Calcium Oxide, Calcia" status="" percent="0.200" tolerance=""/>
<oxide symbol="MgO" name="Magnesium Oxide, Magnesia" status="" percent="0.100" tolerance=""/>
<oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="0.100" tolerance=""/>
<oxide symbol="TiO2" name="Titanium Dioxide, Titania" status="" percent="1.400" tolerance=""/>
<oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="38.300" tolerance=""/>
<oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="45.400" tolerance=""/>
<oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="0.400" tolerance=""/>
</oxides>
<volatiles>
<volatile symbol="LOI" name="Loss on Ignition" percent="13.960" tolerance=""/>
</volatiles>
</material>