Refractories are materials that are designed to maintain strength, dimensional stability and chemical resistance at high temperature. The following additional characteristics make zircon materials for refractory applications.
● Low solubility in molten silica and molten metal
● Chemical inertness
● Resistance to corrosion and erosion
● Low defect potential
These benefits allow zircon and zirconia to be used in a wide range of refractory applications, including refractory mortar, firebricks or refractory linings for glass and metal furnaces as well as fibers, nozzles, slide gates, valves and grouts.
Some of the key benefits achieved by zircon and zirconia in refractory applications are as follows:
The addition of zircon to refractory materials increases thermal shock resistance
The low thermal conductivity of zircon translates into very low heat losses
When fused or combined with alumina and silica, zirconia provides high corrosion resistance to molten glass due to the low solubility of zirconium in molten silica
Its corrosion resistance, together with its low defect potential and good manufacturing ability, makes zircon-based refractories particularly suitable for the hot areas of a furnace
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