Digitalfire Ceramic Materials Database

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Sapphire Kaolin

Secondary Fine Particle Kaolin

Chemistry %

CaO	0.20
MgO	0.15
K2O	0.19
Na2O	0.10
TiO2	1.40
Al2O3	38.15
SiO2	46.25
Fe2O3	0.65

Volatiles %

LOI

13.37

This is a secondary kaolin with a fine particle size distribution. It has no additives. It imparts high green strength while maintaining the best possible fired color. Sapphire is used in the dinnerware, artware and tile industries.

Physical Properties
===================
Dry M.O.R., psi:* 400
pH: 4.8
C.E.C., meq/100g: 6.5 +/- 1.0
Specific Surface Area, sq metre/g: 16.5
Specific Gravity: 2.6
P.C.E.: 33-34

Particle Size, Microns: 20 10 5 2 1 0.5 325# residue
(% finer than) 99% 97% 93% 81% 72% 56% .5

Fired Properties
================
Color, Cone 8 (L) 83.0
(a) -0.8
(b) 8.6

Shrinkage Cone 10, 100% clay 9.2
Absorption Cone 10, 100% clay 7.8

------------------
*Extruded, 50% ball clay, 50% flint
**50% Clay, 50% Nepheline Syenite

Out Bound Links

(Materials - Parent) Kaolin - Al2O3.2SiO2 or Al2Si2O5(OH)4 - Hydrated alumina silicate, Pure clay mineral
China Clay
(Typecodes - Type) 1: KAO - Kaolin
(MDT - Member) Ron Roy
This is the traditional Ron Roy materials file. He...

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?>
<material name="Sapphire Kaolin" descrip="Secondary Fine Particle Kaolin" searchkey="Saphire Kaolin, Saphhire Kaolin" loi="13.37" 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="0.150" tolerance=""/>
<oxide symbol="K2O" name="Potassium Oxide" status="" percent="0.190" 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="38.150" tolerance=""/>
<oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="46.250" tolerance=""/>
<oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="" percent="0.650" tolerance=""/>
</oxides>
<volatiles>
<volatile symbol="LOI" name="Loss on Ignition" percent="13.370" tolerance=""/>
</volatiles>
</material>