sapphire crystal glass
Sapphire crystal glass is a scratch-resistant and highly reflective material. It is also less expensive and simpler to manufacture than acrylic or mineral crystal. Continue reading to learn about the benefits of sapphire crystal glass. In this article, we’ll look at the advantages of sapphire crystal glass, such as its scratch resistance.
- Only diamonds have a higher hardness.
- Much more durable than other optical materials (65,000 modulus of rupture)
- Surface that is extremely hard
High scratch and wear resistance. - UV to mid-IR optical transmission band is extremely broad.
- Exceptionally high melting point
- Electrical resistance is high.
- Stability chemical properties
- High non-conductor thermal conductivity, even better than copper at cryogenic temperatures
- Dielectric constant is very high.
sapphire crystal glass
Free Standing gan Wafer | Single Crystal Substrates
Si Doped Undoped Laser Device Gallium Nitride Wafer
300mm Gan Wafer | Gallium Nitride Wafer For Power Micro LED
8 Inch 12 Inch 6Inch gan Wafer
2 Inch 4 Inch GaN Wafer | Gallium Nitride Wafer
4inch 6inch GaN-ON-SiC EPI layer
sapphire crystal glass
| Thickness | 0.5-50 mm |
| Size tolerance | ±0.03 mm |
| Edge Finish | Ground and beveled |
| Surface Quality | 40-20 scratch-dig |
| Parallelism | ≤3 arc min (≤0.9 mrad) |
| Clear Aperture | >80% of central diameter |
| Hardness (Knoop) | 1370 kg mm-2 |
| Young’s modulus | 3.4 x 1011 N m-2 |
| Thermal Limit | 22 W m-1 K-1 |
| Thermal expansion coefficient | 8.4 x 10-6 K-1 |
Scratch-resistant sapphire crystal glass
Sapphire crystal glass is the most scratch-resistant material available. Despite being a synthetic material, sapphire is far more scratch-resistant than glass. It has a hardness of around 2000 HV, making it one of the hardest materials on the planet. Only diamond and stainless steel are harder than sapphire.
While sapphire crystal is scratch-resistant, it is not the most affordable option. Acrylic crystal is also a less expensive and easier to repair alternative. Acrylic crystal, on the other hand, is less scratch-resistant than sapphire and has a lower clarity. That is why sapphire is the preferred luxury crystal.
Sapphire crystal, unlike mineral glass, does not flex. Sapphire crystals are hexagonal crystals that are arranged uniformly and regularly. In contrast, mineral glass has an amorphous structure and is easily distorted. As a result, sapphire glass is extremely scratch-resistant.
Sapphire crystal is one of the most expensive watch glass materials. It is more scratch-resistant than mineral glass and harder than diamond. Its price reflects its quality, but it also implies that you must properly maintain it. Sapphire is resistant to scratches and protects your watch from shock and other potential damage.
While sapphire is the most scratch-resistant material known to man, it cannot be guaranteed that it will not scratch your watch. However, if you’re careful, you won’t have to worry about scratches on your sapphire crystal. You can still enjoy the same view from your watch.
Although sapphire crystal is not indestructible, it can be polished or replaced as needed. The cost of replacing a crystal varies depending on the brand. However, if you intend to keep it for a long time, the cost is justified. If your sapphire crystal becomes scratched, it is critical that you replace it.