High Zirconia Bricks (Fused Cast High Zirconia Bricks)

High zirconia bricks are composed of the baddeleyite phase and a small amount of matrix glass phase. They feature extremely high corrosion resistance, extremely low blistering and stone-forming rates, and almost no pollution to molten glass. They are mainly used in areas such as the side walls, bottoms, doghouses, electrode blocks, and thresholds of glass melting furnaces.

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High Zirconia Bricks (Fused Cast High Zirconia Bricks)

Physical and Chemical Indicators

Item	High Zirconia Bricks
ZrO₂ (%)	≥ 93
SiO₂ (%)	≤ 5
Al₂O₃ + TiO₂ + Fe₂O₃ + K₂O + Na₂O (%)	≤ 2.0
Bulk Density (g/cm³)	≥ 5.3
Cold Crushing Strength (MPa)	≥ 400
Refractoriness Under Load (0.2MPa, ℃)	≥ 1700

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