Ceramic Materials

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Hardwood Ash

Washed

Alternate Names: Hard wood ash

OxideAnalysisFormula
CaO21.51%0.327
MgO15.85%0.335
K2O33.44%0.303
Na2O2.30%0.032
P2O516.34%0.098
SiO20.67%0.010
Fe2O30.58%0.003
MnO2.60%0.031
SO36.71
Oxide Weight79.57
Formula Weight85.29
This is the chemistry of the material (the formula compares numbers of molecules, the analysis compares them by weight). In glazes, the composite chemistry of the mix is the main factor shaping fired properties (e.g. color, melting temperature, surface). In bodies we are interested in their physical properties (e.g. shrinkage, porosity, strength), these are a product of the mineralogy of the materials.

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By Tony Hansen

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?> <material name="Hardwood Ash" descrip="Washed" searchkey="Hard wood ash" loi="0.00" casnumber=""> <oxides> <oxide symbol="CaO" name="Calcium Oxide, Calcia" status="U" percent="21.510" tolerance=""/> <oxide symbol="MgO" name="Magnesium Oxide, Magnesia" status="U" percent="15.850" tolerance=""/> <oxide symbol="K2O" name="Potassium Oxide" status="U" percent="33.440" tolerance=""/> <oxide symbol="Na2O" name="Sodium Oxide, Soda" status="U" percent="2.300" tolerance=""/> <oxide symbol="P2O5" name="Phosphorus Pentoxide" status="" percent="16.340" tolerance=""/> <oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="0.670" tolerance=""/> <oxide symbol="Fe2O3" name="Iron Oxide, Ferric Oxide" status="U" percent="0.580" tolerance=""/> <oxide symbol="MnO" name="Manganous Oxide" status="" percent="2.600" tolerance=""/> </oxides> <volatiles> <volatile symbol="SO3" name="Sulfur Trioxide" percent="6.710" tolerance=""/> </volatiles> </material>


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