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Refractory BricksZirconia and chrome bricks for glass and gasifier service

Sintered Zirconia Corundum Brick

Sintered zirconia–corundum brick with high strength, strong resistance to molten glass and better thermal shock resistance than fused-cast AZS, in grades AZS16, AZS20 and AZS32.

Grades / types: AZS16, AZS20, AZS32

Product overview

Sintered zirconia corundum brick has high strength and strong resistance to molten glass erosion. Partially stabilised tetragonal ZrO₂ creates microcracks in the brick, and together with a small amount of porosity this gives thermal shock resistance superior to fused-cast AZS brick.

Key characteristics

High strength
Strong resistance to molten glass erosion
Microcrack structure from partially stabilised tetragonal ZrO₂
Thermal shock resistance superior to fused-cast AZS brick

Technical data

Physical and chemical specification
Property	Unit	AZS16	AZS20	AZS32
ZrO₂	%	≥16	≥20	≥32
Al₂O₃	%	≥59	≥55	≥45
Fe₂O₃	%	≤0.5	≤0.5	≤0.5
Cold Crushing Strength (CCS)	MPa	≥70	≥80	≥90
Apparent Porosity	%	≤20	≤18	≤17
Bulk Density	g/cm³	≥3.0	≥3.1	≥3.2
Refractoriness Under Load, 0.2 MPa (RUL)	℃	≥1620	≥1650	≥1680