CZ66
Sintered zircon with 66% zirconia
Premium zirconium silicate. Very high resistance to vapours corrosion and very good glass contact properties for specialty glass expendables.
Typical application
CZ66 is used in superstructure areas including tuckstone for reinforcement and textile fiber glass furnaces as well as for borosilicate glass furnaces..
CZ66 properties are also adapted to the expendable applications :
- as mandrels to increase the lifetime in the manufacturing of pharmaceutical tubes using the Danner process,
- as specific orifice rings with large thickness in borosilicate glass production.
Chemical and physical properties
Microstructure

Typical chemical composition
Typical crystallographic analysis
Main phase: zircon
Secondary phase: monoclinic zirconia
Physical characteristics
Description | International standards | British standards |
---|---|---|
Cold crushing strength | 70Mpa | 10,153psi |
Coefficient of thermal expansion | 4.8 10-6K-1 | 2.7 10-6°F-1 |
Thermal conductivity at 1,000°C | 3 W.m-1.K-1 |
20.8 BTU |
Porosity | 14% | 14% |
Typical bulk density | 3.85g/cm3 | 240pcf |
Storage
The sintered zircon with 66% zirconia, CZ66 solution must be stored in a dry environment protected from weather conditions.
Expendables Catalog
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