High-Temperature Zirconia Crucible
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High-Temperature Zirconia Crucible

  • This product is made of high-purity zirconia with a specific amount of additives, formed by isostatic pressing, and fired at 1850°C. Specific heating curves and cooling times ensure reliable and durable performance. Mainly suitable for melting superalloys and precious metals, guaranteeing the purity of castings and melted alloys.

    Product Features
    1. High purity of alloy castings
    2. Strong thermal shock stability, withstanding more than 10 melting cycles
    3. Targeted formulas tailored for different alloys

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Product Parameters
Physical and Chemical Properties
Test Items Standard Value
ZrO₂ (%) ≥65
SiO₂ (%) ≤35
Al₂O₃ (%) ≤0.2
MgO (%) ≤3
Bulk Density (g/cm³) ≥2.1
Thermal Shock Resistance (cycles/1300°C water-cooled) ≥6
Linear Dimensional Change After Firing (% at 1500°C for 3 hours) ±0.5
Maximum Service Temperature (°C) ≤1900
Apparent Porosity (%) 10-18%
Different formulations have different specifications, which are determined based on the alloy being smelted.
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