Spherical Alumina
Mineral: Spherical Alumina
Spherical alumina is basically alumina “shaped” in a high temperature fusion process. Spherical alumina therefore has the same intrinsic properties as any other alumina. Its chemical formula is Al2O3
At Sibelco high purity aluminas are being used to make spherical alumina.
Properties:
Aluminium Oxide is a white powdery material,
Al2O3 has good electrical insulating properties while having relatively high thermal conductive properties (36 Wm−1K−1), furthermore characterised by:
Basic properties
| Property | Value | Unit |
| Moisture | 0.1 | [%] |
| Hardness (Mohs) | 9.0 | [-] |
| Al2O3 | 99.9 | [%] |
| Density | 4 | [kg/ dm3] |
| Thermal conductivity | 36 | (Wm−1K−1) |
Products:
| Name | Grade | D50 |
| Megasil SA | 0020 | 2.3 |
| 0050 | 5.7 | |
| 0080 | 9.3 | |
| 0380 | 46 | |
| 0700 | 72 |
Production Location: Yeonmu (KR)
Application: Megasil SA products improves the heat-conductivity of the compound and allows for good flowability
Functionality: Performance, Durability
Durability
Performance
