Zirconia Toughened Alumina
Zirconia Toughened Alumina (ZTA) provides mechanical strength and wear resistance and is used as the ideal intermediate solution between Zirconia and Alumina.
Properties and Advantages
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Mechanical strength
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Toughness
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Wear resistance
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Stability at high temperatures
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Resistance to corrosion
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Biocompatibility
Forming Technology
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Dry Pressing
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Cold Isostatic Pressing
Related Products
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Pump components
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Valve seals
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Bushings
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Cutting tool inserts
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Joint implants
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Other Components
| Property | Value |
|---|---|
| General | |
| Chemical Formula | ZTA |
| Mechanical | |
| Density | 4.2 gm/cc |
| Hardness | 12 GPa |
| Modulus of Elasticity | 360 GPa |
| Flexural Strength | 350 MPa |
| Compressive Strength | 2500 MPa |
| Poisson's Ratio | 0.23 |
| Fracture Toughness | 3 MPa m½ |
| Electrical | |
| Dielectric Strength | 12 ac V/mm |
| Dielectric Constant | 10 (@ 1 MHz) |
| Volume Resistivity | 10^14 ohm-cm |
| Thermal | |
| Coefficient of Thermal Expansion | 8.4 x 10^-6/°C |
| Thermal Conductivity | 25 W/(m*K) |
| Specific Heat | 0.68 x10^3 J/(Kg*K) |
| Shock Resistance | 280 °C Diff. |
| Maximum Working Temperature | - |
| Optical | |
| Index of Refraction | - |
| Birefringence | - |
| Transmission Band | - |
|
All properties are at room temperature unless otherwise noted. |
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2015-01-27 03:12
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