Sintered dense zircon


High-purity dense zircon. Premium grade to assure low outgassing (low blister potential).

Typical application

ZS835 is used wherever seeds or blisters cause quality problems. Typical applications include refiners, forehearth, bushing blocks and feeder parts for melting borosilicate and opal glasses.

Chemical and physical properties


ZS835 microstructure

Typical chemical composition


Typical crystallographic analysis

Main phase: zircon

Physical characteristics

Description International standards British standards
Cold modulus of rupture 62Mpa 8,992psi
Cold crushing strength 276Mpa 40,030psi
Coefficient of thermal expansion 4.8 10-6K-1 2.7 10-6°F-1
Thermal conductivity at 1,000°C 2.9 W.m-1.K-1

20.1 BTU
in hr-1ft-2°F-1

Thermal shock resistance low low
Open porosity 11% 11%
Typical bulk density 3.88g/cm3 242pcf

Expansion curve

Expansion curve sintered ZS835

Thermal conductivity curve

Thermal conductivity curve sintered ZS835

Electrical resistivity curve

Electrical resistivity curve sintered ZS835


The sintered dense zircon, ZS835 solution must be stored in a dry environment protected from weather conditions.

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