Introduction to Irregularly Shaped Zirconia Ceramic Blocks
Irregularly shaped zirconia ceramic blocks refer to other components without strict standard specifications, whose dimensions are freely controlled by the manufacturer. They are a special form of zirconia ceramic (ZrO₂). This material possesses the following core characteristics:
1. High hardness and wear resistance: Vickers hardness reaches 11.5 GPa, and wear resistance is equivalent to 266 times that of manganese steel.
2. Excellent insulation performance: Resistivity is greater than 10⁸ Ω·m at room temperature, and the dielectric constant is stable.
3. High temperature resistance: Melting point is as high as 2715℃, and it can be used for extended periods at 1800℃.
4. High toughness: Fracture toughness reaches 8-15 MPa·m¹/², and flexural strength is 800-1200 MPa.
5. Biocompatibility: It has good affinity with human tissue and is suitable for medical implants.
Technical Parameters
Parameter Category | Numerical value | Testing standards |
Physical properties | Density: 6.0 g/cm³ | Bulk density |
Mechanical properties | Compressive strength: 2100 MPa | Compression test |
Thermal properties | Coefficient of thermal expansion: 10.0 × 10⁻⁶/℃ | Thermal expansion instrument |
Electrical properties | Resistivity: 10⁸ Ω·m | Resistance testing |
Optical performance | White (color can be adjusted if impurities are present) | Visual/Spectroscopic |
Application areas
Application areas | Specific use | Advantages demonstrated |
Medical field | Dental crowns/implants, artificial joints, surgical instruments | Biocompatibility, wear resistance, and aesthetics |
Electronics industry | Chip isolation layer, 5G radio frequency components, oxygen sensor | High-frequency insulation properties, thermal stability |
Mechanical manufacturing | Bearings, valves, cutting tools | High hardness, wear resistance, and corrosion resistance. |
Aerospace | Engine thermal barrier coating | High temperature resistance, thermal shock resistance |
Jewelry | Imitation diamond jewelry, watch parts | High gloss, scratch-resistant |
Supports custom specifications.
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