Silica Sand
Often used in clay bodies instead of grog or to augment grog. However the particle size is often round and the angular shaped particles of grogs are usually more suited to clay bodies. In addition, the thermal expansion behavior of the quartz will contribute to dunting (grogs are available that have almost zero thermal expansion). Also used as a lubricant on kiln shelves to prevent ware from sticking and enable it to move while shrinking.
Many sizes and particle shapes of silica sand are available. Colors can range from white to brownish, the latter containing iron. Small amounts of iron or contaminating products can darken the sand considerably. Many industrial silica sands are not suitable for ceramics because of the level of impurities they contain.
Silica sand is used as a source of SiO2 in the glass industry and for a wide range of things in others.
Out Bound Links
In Bound Links
- (Materials - Parent)
#1 Q-Rok - 30 mesh silica
- (Materials - Related)
Grog - Crushed Brick, Body Agregate
Pictures
Examples of some different silica sands
XML for Import into INSIGHT
<?xml version="1.0" encoding="UTF-8"?>
<material name="Silica Sand" descrip="" searchkey="" loi="0.00" casnumber="15468-32-3">
<oxides>
<oxide symbol="SiO2" name="Silicon Dioxide, Silica" status="" percent="100.000" tolerance=""/>
</oxides>
</material> | 
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Learn more..
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