Ceramic Material Performance Parameter Table
A detailed comparison of technical parameters to help you choose the most suitable ceramic material solution.
Aluminum oxide ceramics (Al₂O₃)
High purity alumina ceramics, with excellent insulation, wear resistance and chemical stability, are widely used in electronics, machinery, chemical industry and other fields.
| Performance Parameters | unit (of measure) | 95% Al₂O₃ | 99% Al₂O₃ | 99.9% Al₂O₃ |
|---|---|---|---|---|
| intensity | g/cm³ | 3.70 | 3.90 | 3.95 |
| bending strength | MPa | 350 | 400 | 450 |
| compressive strength | MPa | 2000 | 2500 | 3000 |
| modulus of elasticity | GPa | 300 | 350 | 380 |
| Fracture toughness | MPa-m^0.5 | 3.5 | 4.0 | 4.5 |
| Mohs hardness | - | 8.5 | 9.0 | 9.0 |
| heat conductivity | W/m-K | 20 | 25 | 30 |
| coefficient of thermal expansion | ×10^-6/K | 8.0 | 8.5 | 8.8 |
| Maximum operating temperature | °C | 1500 | 1600 | 1700 |
| resistivity | Ω-cm | >10^14 | >10^15 | >10^16 |
| dielectric constant | - | 9.5 | 9.8 | 10.0 |
| dielectric loss | ×10^-4 | 5 | 3 | 2 |
Zirconia Ceramics (ZrO₂)
With excellent toughness, high strength and wear resistance, especially at low temperatures with superplasticity, widely used in structural ceramics, bioceramics and other fields.
| Performance Parameters | unit (of measure) | 3Y-TZP | 8Y-YSZ | Mg-PSZ |
|---|---|---|---|---|
| intensity | g/cm³ | 6.05 | 6.00 | 5.70 |
| bending strength | MPa | 900-1200 | 800-1000 | 600-800 |
| compressive strength | MPa | 2000 | 1800 | 1500 |
| modulus of elasticity | GPa | 210 | 200 | 200 |
| Fracture toughness | MPa-m^0.5 | 6-10 | 5-8 | 8-15 |
| Mohs hardness | - | 12 | 12 | 11 |
| heat conductivity | W/m-K | 2-3 | 2-3 | 2-3 |
| coefficient of thermal expansion | ×10^-6/K | 10.5 | 10.8 | 9.5 |
| Maximum operating temperature | °C | 1000 | 1200 | 1400 |
| phase change toughening | - | be | be | be |
| biocompatibility | - | talented | favorable | favorable |
Silicon Nitride Ceramics (Si₃N₄)
With high strength, high hardness, excellent heat shock resistance and chemical stability, it is widely used in high temperature structural ceramics, cutting tools and other fields.
| Performance Parameters | unit (of measure) | Reactive sintering | hot pressing and sintering | gas pressure sintering |
|---|---|---|---|---|
| intensity | g/cm³ | 2.80-3.20 | 3.20-3.30 | 3.20-3.30 |
| bending strength | MPa | 300-400 | 700-900 | 800-1000 |
| compressive strength | MPa | 1200 | 3000 | 3500 |
| modulus of elasticity | GPa | 160-180 | 290-320 | 300-320 |
| Fracture toughness | MPa-m^0.5 | 3-4 | 6-8 | 7-9 |
| Mohs hardness | - | 9 | 9-10 | 9-10 |
| heat conductivity | W/m-K | 20-30 | 70-90 | 80-120 |
| coefficient of thermal expansion | ×10^-6/K | 3.2 | 3.2 | 3.2 |
| Maximum operating temperature | °C | 1200 | 1400 | 1500 |
| thermal shock resistance | - | talented | talented | talented |
| antioxidant | - | favorable | talented | talented |
Silicon Carbide Ceramics (SiC)
Very high hardness, excellent high-temperature strength and thermal conductivity, as well as good abrasion and corrosion resistance make it ideal for high-temperature applications.
| Performance Parameters | unit (of measure) | Reactive sintering | hot pressing and sintering | pressureless sintering |
|---|---|---|---|---|
| intensity | g/cm³ | 3.10-3.20 | 3.20-3.25 | 3.10-3.15 |
| bending strength | MPa | 400-500 | 500-600 | 350-450 |
| compressive strength | MPa | 2500 | 3500 | 2500 |
| modulus of elasticity | GPa | 410-430 | 440-460 | 410-430 |
| Fracture toughness | MPa-m^0.5 | 3-4 | 4-5 | 3-4 |
| Mohs hardness | - | 9.5 | 9.5 | 9.5 |
| heat conductivity | W/m-K | 120-150 | 150-200 | 100-120 |
| coefficient of thermal expansion | ×10^-6/K | 4.0 | 4.0 | 4.0 |
| Maximum operating temperature | °C | 1600 | 1650 | 1600 |
| resistivity | Ω-cm | 0.1-1 | >10^6 | >10^6 |
| abrasion resistance | - | talented | talented | talented |
Aluminum Nitride Ceramics (AlN)
With very high thermal conductivity and excellent electrical insulation properties, it is an ideal material for heat dissipation of electronic devices and also has good dielectric properties.
| Performance Parameters | unit (of measure) | high purity | standard grade | economy class |
|---|---|---|---|---|
| intensity | g/cm³ | 3.30 | 3.25 | 3.20 |
| bending strength | MPa | 400-500 | 350-450 | 300-400 |
| compressive strength | MPa | 2000 | 1800 | 1500 |
| modulus of elasticity | GPa | 310-330 | 300-320 | 290-310 |
| Fracture toughness | MPa-m^0.5 | 3-4 | 3-4 | 2.5-3.5 |
| Mohs hardness | - | 8-9 | 8-9 | 8-9 |
| heat conductivity | W/m-K | 180-220 | 150-180 | 120-150 |
| coefficient of thermal expansion | ×10^-6/K | 4.5 | 4.5 | 4.5 |
| Maximum operating temperature | °C | 2200 | 2000 | 1800 |
| resistivity | Ω-cm | >10^14 | >10^14 | >10^12 |
| dielectric constant | - | 8.8 | 8.8 | 8.5 |
| dielectric loss | ×10^-4 | 1-2 | 2-3 | 3-5 |
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