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Magnesia Zirconia Bricks for 1750 C Ultra High Temperature Kiln or Erosion of Furnace and Kiln Furniture
Physical and Chemical Indicators:
Items | Index | |||
Bubble Zirconia Brick | Zirconia Brick | Magnesia-zirconia Brick | ||
Chemical Composition | MgO, % ≥ | - | - | 76 |
Fe2O3 % | 0.2 | 0.2 | 0.8 | |
SiO2 % | 0.5 | 0.5 | 8 | |
ZrO2 % ≤ | 98 | 98 | 13 | |
Bulk Density(g/cm3) | 3.1 | 4.5 | 3.1 | |
Cold Crushing Strength, MPa ≥ | 8 | 50 | 45 | |
Refractoriness Under Load,°C, [0.2MPa×0.6%] ≥ | 1700 | 1700 | 1600 | |
Thermal Shock Resistance, Times, [1100°C, water-cooling] | 7.8 | 8 | - |