About Ceramic Materials
SPT has extensive experience in the field of ceramic materials
Technical Ceramics have become a preferred material in many industries today because of their performance, durability and appearance. The properties of most Ceramic Materials sutch as Alumina oder Zirconia make them suitable for a wide variety of applications.
Upon request, the materials can be certified according to international ISO or ASTM standards.
1. Alumina
| Properties | Units | Al2O3 99,7% | Alumina Ceramic Oxide 99,99% | Polycristalline Ruby | Zirconia Toughened Alumina | Zirconia Toughened Alumina | Zirconia Toughened Ruby |
| SPT Denomination | A | C | R | CT | AZ | AZR | |
| Density | g/cm3 | 3.9 | 3.98 | 3.9 | 4.0 | 4.25 | 4.25 |
| Colour | Ivory | White (translucent available) | Red (translucent available) | White | White | Pink | |
| Flexural Strength | MPa | 310 | 710 | 710 | 750 | 930 | 930 |
| Hardness | HV 1 | 1'800 | 2'180 | 2'200 | 2'150 | 2'060 | 2'100 |
| Grain Size | µm | < 3 | < 1 | < 2 | < 1.5 | < 0.9 | < 0.9 |
2. Zirconia
| Properties | Units | Zirconia ZrO2-3Y | Zirconia ZrO2-3Y | Zirconia Alumina | Zirconia Alumina |
| SPT Denomination | Z | ZBL | ZF | AZO | |
| Density | g/cm3 | 6.0 | 6.0 | 6.0 | 5.5 |
| Colour | Ivory | Black | White | White | |
| Flexural Strength | MPa | 1'350 | 1'350 | 1'400 | 2'000 |
| Hardness | HV 1 | 1'300 | 1'300 | 1'300 | 1'500 |
| Grain Size | µm | < 0.6 | < 0.6 | < 0.6 | < 0.5 |
