ZIRAL GC
Bonded alumina-zirconia-silica (AZS) with 20% zirconia
ZIRAL GC is recommended for glass contact application in feeder expendables where high corrosion resistance is required.
Typical application
- spouts
ZIRAL GC is recommended for sodalime glassware, cosmetic glass and high-temperature glass.
Chemical and physical properties
Typical chemical composition
Typical crystallographic analysis
Main phase:
- corundum
- monoclinic zirconia
Secondary phase:
- mullite
- silicate
Physical characteristics
Description | International standards | British standards |
---|---|---|
Cold crushing strength | 50MPa | 7,252psi |
Refractoriness under load 2 105Pa, 0.5% at |
1,650°C | 3,002°F |
Coefficient of thermal expansion | 5 10-6K-1 | 2.8 10-6°F-1 |
Thermal conductivity at 1,000°C | 2 W.m-1.K-1 | 13.9 BTU in hr-1ft-2°F-1 |
Thermal shock resistance | medium | medium |
Porosity | 17% | 17% |
Typical bulk density | 3.15g/cm3 | 197pcf |
Storage
The bonded alumina-zirconia-silica (AZS) with 20% zirconia, ZIRAL GC solution must be stored in a dry environment protected from weather conditions.
Expendables Catalog
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