We can provide high temperature superconducting thin film substrate , magnetic thin films and ferroelectric thin film substrate , semiconductor crystal , optical crystal , laser crystal materials ,at the same time provide orientation and foreign universities and research institutes to provide high quality ( ultra smooth ,ultra smooth , ultra clean)
Al2O3 Substrate
Typical Physical Properties:
| Product | Sapphire Al2O3 |
| Crystal structure | hexagonal |
| Crystal lattice parameters | a=4.758Å c=12.99Å |
| Orientation | <0001>,<11-20> <10-10>,<1-102> |
| Melting point (°C) | 2040 |
| Density(g/cm3) | 3.97 |
| Mohs hardness | 9 |
| Refractive index | 1.77 |
| Coefficient of thermal expansion(×10-6/K) | 7.5 |
| Permittivity | 9.4@a 11.58@c |
| Growth method | kyropoulos method, Czochralski method |
| Size(mm) | Φ50.8×0.5mm; Φ100×0.65mm; 10×10×0.5mm ,maximum dia Φ180mm |
| polished | One side polished or both sides polished |
| Packing | 100 clean bag，1000 exactly clean bag |
Please send us your request with below details to " sales@mdlmaterials.com"
1. Size with tolerance (Diameter / Thickness )
2. Type
3. Orientation
4. Polishing Side (SSP or DSP )
5. Quantity
