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Matrix Frit B40-C
High boron zero silicate refractory calcia alumina frit
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Although this frit is very high in boron, it is a refractory (this might be a surprise to ceramic technicians who are accustomed to the use of boron as a powerful flux). Frits of this type have been in use to stop the penetration of aluminum in refractories since 1958 (by Carborundum Co., Metaullics Inc., Ceradyne, H-W Refractories (now ANH), and AP Green, and others). The original patent holder for these frits was Kaiser Aluminum Corp.
They are about ~1% soluble after 90 min in ~25 C water. In this way they can be used in castable cements where any appreciable amount of soluble boric oxide would retard Calcium Aluminate cement almost indefinitely.
Out Bound Links
In Bound Links
- (Materials - Related)
Matrix Frit B70-A - High boron zero silicate calcia alumina frit
- (Oxides - Related)
B2O3 - Boric Oxide
XML for Import into INSIGHT
<?xml version="1.0" encoding="UTF-8"?>
<material name="Matrix Frit B40-C" descrip="High boron zero silicate refractory calcia alumina frit" searchkey="" loi="0.00" casnumber="65997-18-4">
<oxide symbol="CaO" name="Calcium Oxide, Calcia" status="" percent="24.000" tolerance=""/>
<oxide symbol="Al2O3" name="Aluminum Oxide, Alumina" status="" percent="33.000" tolerance=""/>
<oxide symbol="B2O3" name="Boric Oxide" status="" percent="40.000" tolerance=""/>
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