Zirconia Toughened Alumina Powder
Zirconia Toughened Alumina Powder
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Zirconia Toughened Alumina Powder Data Sheet
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Composition: |
Alumina/Zirconia |
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Color: |
White or off white |
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Dimensions: |
Customized |
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Shape: |
Powder |
Zirconia Toughened Alumina Powder Description
Zirconia toughened alumina powder is a white ceramic powder featuring low sintering temperature and uniform dispersion of both phases. After firing, the green body is easy to machine and offers a smooth surface finish. The final ceramic products are lightweight, strong, tough, and highly resistant to wear, corrosion, and high temperatures. This powder is widely used as a raw material for structural ceramic parts, including cutting tool bases, molds, wear-resistant bushings, valve seats, pump components, and textile machinery parts.
Zirconia Toughened Alumina Powder Specifications
| ZrO₂(HfO₂) + Y₂O₃ | 19-21 wt% |
| Al₂O₃ | 78-80 wt% |
| Cl⁻ | 0.01 wt% |
| Fe₂O₃ | 0.003 wt% |
| BET Surface Area | 8-10 m²/g |
| D50 Particle Size | 0.6-1.0 μm |
| Other Impurities (Si, Fe, etc.) | Controlled below 100 ppm |
| Suggested Forming Method | Dry Pressing & Isostatic Pressing |
| Recommended Sintering Temperature | 1420-1450℃ |
| Flexural Strength | ＞550 MPa |
| Sintered Density | ＞4.2 g/cm³ |
| Customizable | Binder addition is possible upon request |
Zirconia Toughened Alumina Powder Features
- White appearance: Fine white powder with clean, consistent texture.
- Low sintering temperature: Enables energy-efficient processing and dense ceramic formation.
- Uniform phase distribution: Ensures stable mechanical properties and reliable performance.
- Good green machinability: Fired bodies are easy to process with excellent surface quality.
- Enhanced final properties: Yields ceramics with low density, high strength, toughness, wear resistance, and thermal stability.
Zirconia Toughened Alumina Powder Applications
- Cutting tool bases: Used to produce tough, wear-resistant ceramic substrates for cutting tools.
- Precision molds: Ideal for high-strength, corrosion-resistant ceramic mold components.
- Wear-resistant bushings: Applied in machinery to reduce abrasion and extend service life.
- Valve seats and pump parts: Suitable for demanding fluid-handling environments requiring thermal and chemical stability.
- Aerospace components: Suitable for structural parts exposed to extreme temperatures and stress cycles.
Pumps and Vavles
Semiconductor Components
Aerospace Field
Cutting Tools
Zirconia Toughened Alumina Material Properties
Zirconia Toughened Alumina Material Grades
CeramAlloy ZTA is a high performance ceramic composite and a unique ceramic material by way of exhibiting a combination of high hardness, strength, wear and corrosion resistance resulting from its Alumina content, while still maintaining reasonably high fracture toughness resulting from its Zirconia content.
Applications:
- High pressure equipment – ball valve balls and seats
- Rollers and guides for metal forming
- Thread and wire guides
- Deep well down-hole valves and seats
- Shaft bearings/bushings
Ultra Hard is a high performance ceramic composite and a unique ceramic material by way of exhibiting a combination of high hardness, strength, wear and corrosion resistance resulting from its Alumina content, while still maintaining reasonably high fracture toughness resulting from its Zirconia content.
Applications:
- High pressure equipment – ball valve balls and seats – particularly suitable for high flow/abrasive fluids
- Focusing nozzles for abrasive media
- Ultra high pressure pumping elements
- Deep well down-hole valves and seats
- Rollers and guides for metal forming
- Thread and wire guides
- Metal extrusion dies
Zirconia Toughened Alumina Powder Ceramic Packaging
The zirconia toughened alumina powder is typically packaged in sealed, moisture-proof plastic bags, then placed in sturdy drum containers or fiber cartons to prevent contamination and ensure safe transport. Standard packaging sizes include 1 kg, 5 kg, and 10 kg options, with custom packaging available upon request to meet specific usage or storage needs.
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