Goodfellow Leachable Ceramic (Silica, Zircon, Alumina)

Category	Ceramic , Oxide , Silicon Oxide
Manufacturer	Goodfellow
Trade Name
Port	Shanghai port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	Goodfellow Leachable Ceramic (Silica, Zircon, Alumina).pdf
Price	EMAIL US sales@lookpolymers.com
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Material Notes:

SiO2 50/ZrSiO4 40/Al2O3 10This form of ceramic is used in the precision foundry industry. The tubes and rods are incorporated into molds in the lost wax process. Using this technique, very fine tolerances on diameter can be obtained. The ceramic is leached away by the using sodium hydroxide solution once the metal has solidified. This leachable ceramic has a high porosity, does not have an organic binder, but does absorb water.Information provided by Goodfellow.

Physical Properties	Metric	English	Comments
Density	2.10 g/cc	0.0759 lb/in³
Water Absorption at Saturation	14 %	14 %
Porosity	25 %	25 %	apparent

Thermal Properties	Metric	English	Comments
CTE, linear	1.98 µm/m-°C @Temperature 20.0 - 1000 °C	1.10 µin/in-°F @Temperature 68.0 - 1830 °F
Maximum Service Temperature, Air	1050 °C	1920 °F

Component Elements Properties	Metric	English	Comments
Al2O3	10 %	10 %
SiO2	50 %	50 %

Descriptive Properties	Value	Comments
Chemical Resistance - Alkalis	Poor
Chemical Resistance - Concentrated Acids	Fair
Chemical Resistance - Dilute Acids	Fair
Chemical Resistance - Halogens	Fair
Chemical Resistance - Metals	Good

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