Advanced Ceramic Manufacturing & Machining
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Zirconia Alumina Composites
RocCera Zirconia Toughened Alumina (RZTA) is a ceramic that exhibits excellent wear and corrosion resistance, high strength and superior toughness. Below are some typical properties:
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RocCera, LLC • 771 Elmgrove Road, Rochester NY 14624 • Tel: 585.426-0887 • Fax: 585.426-0884 • eMail: info@roccera.com
RocCera, LLC • 771 Elmgrove Road, Rochester NY 14624 • Tel: 585.426-0887 • Fax: 585.426-0884 • eMail: info@roccera.com
| Chemical Composition | 80% alumina, 20% zirconia | |
| Crystal Structure | Tetragonal, alpha, monoclinic | |
| Density | gram/cc | 4.3 |
| Color | White | |
| Young's Modulus @ RT | psi (MPa) | 36 million (320) |
| Flexural Strength @ RT | psi (MPa) | 120,000 (812) |
| Fracture Toughness | MPa√m | 6 |
| Vicker's Hardness | 500 g load | 1500 VHN |
| Weibull Modulus | 8 | |
| Thermal Conductivity(RT) | cal/cm.sec. °C | 0.025 |
| Coeff. of Linear Thermal Expansion (40-400 °C) | /°C | 5x10-6 |
RocCera Alumina Toughened Zirconia (RATZ) is a ceramic that also exhibits excellent wear and corrosion resistance properties. Below are some typical properties:
| Chemical Composition | 85% zirconia, 15% alumina | |
| Crystal Structure | Tetragonal, monoclinic, alpha | |
| Density | gram/cc | 5.7 |
| Color | white | |
| Young's Modulus @ RT | psi (MPa) | 36 million (320) |
| Flexural Strength @ RT | psi (MPa) | 120,000 (812) |
| Fracture Toughness | MPa√m | 6 |
| Vicker's Hardness | 1500 VHN | |
| Weibull Modulus | 500 g load | 8 |
| Thermal Conductivity(RT) | cal/cm.sec. °C | 0.012 |
| Coeff. of Linear Thermal Expansion (40-400 °C) | /°C | 8x10-6 |