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The Ultra-Pure 99% Alumina Ceramic Plate is a high-performance engineered ceramic component designed for extreme environments where exceptional electrical insulation, thermal stability, and mechanical durability are critical. Manufactured with 99% purity alumina (Al₂O₃), this plate delivers superior performance in temperatures up to 1600°C (2912°F), making it ideal for semiconductor processing, high-temperature furnaces, and precision industrial equipment.
Dielectric Strength: ≥15 kV/mm at room temperature; Volume Resistivity: >10¹⁴ Ω·cm at 500°C. Ideal for high-voltage applications.
Continuous operating temperature of 1600°C with minimal thermal expansion and resistance to rapid thermal cycling (ΔT >500°C/min).
Vickers Hardness ≥1500 HV and Compressive Strength >2200 MPa. Provides 10X longer lifespan than steel in abrasive environments.
Resists acids, alkalis, and molten metals (Cu, Al) with zero outgassing in vacuum environments (<10⁻⁹ Torr).
| Property | Value |
|---|---|
| Al2O3 Purity | 99% |
| Density | 3.89 g/cm³ |
| Flexural Strength | 380 MPa |
| Surface Roughness (Polished) | Ra ≤0.1 μm |
| CTE (25-800°C) | 7.2 × 10⁻⁶/°C |
The 99% alumina ceramic plates can withstand continuous operating temperatures up to 1600°C (2912°F) and are stable under extreme thermal cycling conditions.
Yes, these plates offer zero outgassing in vacuum environments (up to <10⁻⁹ Torr), making them ideal for semiconductor cleanroom and aerospace applications.
With a Vickers Hardness of ≥1500 HV, these ceramics are comparable to tungsten carbide and offer approximately 10 times the lifespan of steel in abrasive environments.
Absolutely. We offer various surface finishes, including as-fired and precision polished finishes with a roughness of Ra ≤0.1 μm.
Standard sizes range from 10 × 10 mm up to 500 × 500 mm, with thicknesses ranging from 0.5 mm to 30 mm. Larger sizes are available upon request.
Yes, 99% Alumina is highly chemically inert and resists most acids, alkalis, and molten metals like copper and aluminum.
