ZA33
Bonded alumina-zirconia-silica (AZS) with 10% zirconia
ZA33 is adapted for most of the standard feeder expendable applications.
Typical application
- spouts
- skimmer blocks
- back blocks
- mantle blocks
ZA33 is suitable for sodalime, container and, cosmetic glassware.
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 | 140MPa | 20,305psi |
| Refractoriness under load 2 105Pa, 0.5% at |
1,640°C | 2,984°F |
| Coefficient of thermal expansion | 7 10-6K-1 | 3.8 10-6°F-1 |
| Thermal conductivity at 1,000°C | 2.4 W.m-1.K-1 | 16.65 BTU in hr-1ft-2°F-1 |
| Thermal shock resistance | good | good |
| Porosity | 15% | 15% |
| Typical bulk density | 3.05g/cm3 | 190pcf |
Storage
The bonded alumina-zirconia-silica (AZS) with 10% zirconia, ZA33 solution must be stored in a dry environment protected from weather conditions.
Expendables Catalog
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