Magnesia Zirconia Bricks

Magnesia zirconia bricks feature a dense structure, small and evenly distributed pores, high high-temperature strength, good thermal shock resistance, and good resistance to alkaline corrosive atmospheres and alkaline slag. They also have excellent kiln coating performance. They are suitable for the burning zone of cement kilns and the regenerators of glass melting furnaces.

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Physical and Chemical Indicators

Item	MZ8	MZ10	MZ13
MgO (%)	≥ 80	≥ 75	≥ 70
ZrO₂ (%)	≥ 8	≥ 10	≥ 13
Apparent Porosity (%)	≤ 19	≤ 18	≤ 18
Bulk Density (g/cm³)	≥ 2.95	≥ 3.0	≥ 3.05
Cold Crushing Strength (MPa)	≥ 50	≥ 45	≥ 40
Refractoriness Under Load (0.2MPa, ℃)	≥ 1600	≥ 1550	≥ 1600
Thermal Shock Resistance (Cycles, 950℃ air cooling)	≥ 10	≥ 10	≥ 10

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