What are the advantages of sapphire glass compared to ordinary glass?
Time:
2024-11-18
Compared to ordinary glass, sapphire has extremely high hardness and scratch resistance, which are the two most important factors determining the quality of displays and camera lenses. Hardness is usually represented by Mohs; for example, the hardness of mica is 1 Mohs, diamond is 10 Mohs, and glass ranges from 5.5 to 7 Mohs, but sapphire has a hardness of 9 Mohs, which means it is close to the hardness of diamond.
Corning Gorilla Glass currently appears on many smartphone displays, including the Google Nexus 5 and Samsung Galaxy S4. Although the specific hardness of Corning Gorilla Glass has not been disclosed, it is expected to be around 7 Mohs. The hardness of ordinary steel is about 4 Mohs, while hardened steel is around 8 Mohs. Objects made of materials with higher hardness typically have higher scratch resistance. This means that a sapphire display mobile can almost withstand any "attack" when placed in a pocket.
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