As a representative material of advanced ceramics, alumina ceramics are widely used. They have hardness second only to diamonds, offering exceptional wear resistance, high mechanical strength, and features such as excellent chemical resistance, heat resistance, and electrical insulation. Due to their superior cost performance, they are used in many fields.
| Material Symbol | YN-31 | YN-26 | YN-24 | |
|---|---|---|---|---|
| Alumina Content | % | 99.5 | 96 | 92 |
| Coloration | Ivory | White | White | |
| Apparent Density | g/cm3 | 3.9 | 3.7 | 3.6 |
| Water Absorption Rate | % | 0 | 0 | 0 |
| Flexural Strength | MPa | 360 | 350 | 340 |
| Vickers Hardness HV1 | GPa | 16 | 13.7 | 12.3 |
| Coefficient of Thermal Expansion from 40°C to 400°C | ×10-6/°C | 7.2 | 7.2 | 6.8 |
| Thermal Conductivity at 20°C | W/(m·K) | 32 | 24 | 17 |
| Dielectric Strength | KV/(mm) | >10 | >10 | >10 |
| Volume Resistivity | Ω·cm | >1014 | >1014 | >1014 |
※The data provided are representative values and are not guaranteed values.
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