KUNWU / MATERIAL
Alumina
High-temperature electrical-insulation ceramic for wear-resistant and structural components.
Al₂O₃
Material grades
Published performance data
Values are reproduced from KUNWU technical data and depend on test method, printing, debinding and sintering conditions. Technical confirmation is required before batch design.
| ADT-Al₂O₃-TH01-X | ADT-Al₂O₃-TH01-H | |
|---|---|---|
| Powder purity | ≥99% | ≥97% |
| Solid loading | 56 vol% / 82 wt% | 62 vol% / 85 wt% |
| Viscosity at 50 s⁻¹ | 3.21 Pa·s | 5.08 Pa·s |
| Slurry density | 2.69 g/cm³ | 2.76 g/cm³ |
| Sintering temperature | 1750°C | 1750°C |
| Actual density | 3.76 g/cm³ | 3.68 g/cm³ |
| Relative density | 95.2% | 98.1% |
| Porosity | 4.80% | 1.9% |
| Three-point flexural strength | 298 MPa | 386 MPa |
| Surface roughness Ra | 0.75 μm | 1.14 μm |
| Hardness HV10 | 1566 | 1040 |
| Compressive strength | 632 MPa | 880 MPa |
| Maximum service temperature | 1650°C | 1650°C |