Quartz ceramics based on amorphous silica (SiO2) has an exceptional set of properties:

• Exceptional heat resistance
• High purity
• Excellent corrosion resistance
• Low density
• Preservation of strength in a wide range of temperatures
• Excellent glass resistance
• Low thermal expansion coefficient
• Dielectric properties

 

All these combinations make the material irreplaceable in the manufacture of corrosion-resistant, electrical insulating and heat-resistant products for a wide variety of industries.

 

Main applications:

• Feeder glass (bowls, plunger, bushings, glasses)
• Oversized crucibles and agitators for pot furnaces, responsible furnace lining elements
• Crucibles, boats, cuvettes for melting optical glasses, melting non-ferrous and precious metals
• Shafts for glass tempering lines
• Cases for thermocouples
• Shibera
• Burner blocks and stones
• Agitators
• Dies, glasses for steel pouring
• Laser reflectors
• Lining
• Insulators

 

There are two main types of quartz ceramics based on amorphous silica:

• АМК-0

High purity material for use in optical glassmaking

• АМК-1

Recommended for use in non-ferrous and precious metallurgy.

 

The main properties of materials

Material grade Properties	АМК-0 АМК-1
Density, g/sm3	1,9-2,0
Open porosity, %	5-15
Flexural strength, (20°C) MPa	15-45
Coefficient of linear thermal expansion at 20-1000 0С, 10-6К-1	0,58
The dielectric constant	3,2-3,6
Thermal conductivity at 20-100 0С, W/mK	0,7-1,0
Heat resistance to differential 20- 1300 °C	unlimited
Maximum operating temperature, °C	1 600

 

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