Zirconium oxide (ZrO₂), also known as zirconia, is an inorganic compound known for its high melting point, hardness, and chemical stability. Zirconium oxide powder is widely used in ceramics, refractories, optics, electronics, and medical applications.
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High Melting Point: With a melting point of 2715°C, it is suitable for high-temperature applications.
High Hardness: Zirconium oxide powder is extremely hard, making it ideal for wear-resistant ceramics.
Chemical Stability: It is resistant to acids, alkalis, and most chemicals.
Low Thermal Expansion: It has a low thermal expansion coefficient, making it suitable for high-temperature environments.
| Item | Technical Specification |
|---|---|
| Chemical Composition | ZrO₂ ≥ 99.5% |
| Particle Size Distribution | D50 ≤ 0.5 µm, D90 ≤ 3.0 µm |
| Specific Surface Area | 10-30 m²/g |
| True Density | 5.6-6.0 g/cm³ |
| Moisture Content | ≤ 0.5% |
| Sintered Density | ≥ 5.7 g/cm³ (after sintering) |
| Heavy Metal Content | Pb ≤ 10 ppm, Cd ≤ 1 ppm |
| Particle Size Analysis | D10 ≤ 0.1 µm, D50 ≤ 0.5 µm, D90 ≤ 3 µm |
| Appearance | White or light yellow powder |
| Sintering Temperature | 1400-1600°C (for high-temperature sintering) |
| Applications | Ceramics, coatings, electronic components, catalyst supports, high-temperature structural materials, etc. |
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