Custom Zirconia Ceramic Washer Anti Corrosion Zirconia Ceramic Gasket Slotted
Custom Zirconia Ceramic Washer High Hardness Anti‑Corrosion Slotted ZrO2 Seal Spacer Gasket
Zirconia (ZrO₂) ceramic structural parts are advanced precision engineering ceramics manufactured from high-purity zirconia powder with stabilizers such as yttria, through dry pressing, isostatic pressing and high-temperature sintering. Known as “ceramic steel”, zirconia ceramics stand out among structural ceramic materials for their exceptional toughness, ultra-high strength and outstanding wear resistance, widely used for precision structural components under harsh mechanical and thermal working conditions.
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High Fracture Toughness: Known as “ceramic steel”, yttria‑stabilized zirconia avoids brittle chipping under impact and cyclic pressure, far superior to alumina ceramic.
Excellent Wear Resistance & Low Friction: High surface hardness with fine ground smooth surface, low friction coefficient. Long‑term cyclic friction without dimension loss, extending equipment service life.
Superb Chemical Corrosion Resistance: Inert to most acids, alkalis, salt solutions and organic solvents. No rust or chemical dissolution, perfect for corrosive slurry and chemical fluid environments.
High‑Dense Pore‑Free Structure: Dense microstructure prevents medium penetration and contamination, satisfying high‑purity production requirements for pharmaceutical, new‑energy slurry processing.
Stable Dimensional Performance: Low thermal expansion coefficient, minimal deformation under temperature fluctuation. Tight tolerance ensures consistent fitting and sealing performance.
Electrical Insulation Property: Good insulation performance, suitable for equipment requiring electrical isolation.
Technical Datasheet
| Material | Zirconia Oxide (ZrO2) |
| Bulk Density | 6.0x10³kg/m3 |
| Vickers Hardness Load 500g |
12.7GPa(1270HVA 500) |
| Flexural/Strength | 1470MPa |
| Young’s Modulus of Elasticity | 220GPa |
| Poisson’s Ratio | 0.31 |
| Coefficient of Linear 40~4000C | 10.8x10⁻⁶/°C |
| Thermal Expansion 40~8000C | 11.3x10⁻⁶/°C |
| Thermal Conductivity | 3w/(m.k) |
| Formula | ZrO2 94.5% |
| Y2O3 5.2% | |
| Al2O3 0.2% |
Key Features
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Ultra-high toughness and strength, anti-crack and anti-impact
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Excellent wear resistance and scratch resistance
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Strong acid and alkali corrosion resistance
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High dimensional stability and low thermal deformation
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Good thermal shock resistance and insulation performance
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Custom complex structures and high-precision processing available
Applications
- Chemical pump, magnetic drive pump, valve assemblies: wear‑resistant sealing & spacing washers
- Fine chemical, pharmaceutical and new‑energy slurry equipment: non‑polluting ceramic gaskets
- Precision machinery: high‑load anti‑wear spacer rings
- Environmental protection equipment: anti‑corrosion separating washers
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