It is also glass. Why is gorilla glass more famous and scratch resistant than other glass? Some people say that Nokia is so resistant to falling because it has made bullets. If you use similar reasons to explain why gorilla glass is so scratch resistant, it is because Corning has made bullet proof glass. Of course, this is just a joke. What is the actual reason?
Gorilla glass is a special glass introduced by Corning Corporation that is suitable for use on mobile phones and tablets. Compared with other glass, this glass is thinner and more flexible than ordinary glass. It can produce certain deformation without breaking easily, so it can withstand certain impact.
But even gorilla glass can still be broken, and gorilla glass is more powerful because of its super scratch resistance.
The gorilla glass is actually from the soda lime glass that is common in our life, that is, the glass that we usually use, such as glass, and then through ion exchange, the ordinary glass is changed into gorilla glass. In the process of gorilla production, ordinary soda lime glass needs to be put into the potassium nitrate solution, so that the potassium ion in the potassium nitrate can replace the sodium ion in the glass.
Potassium ion replaces sodium ion on glass surface
Because potassium ion has a larger structure and more active chemical properties, it means that the new compounds generated after replacing sodium ion have higher stability and higher strength. In this way, a dense strengthening compression layer is formed, and the stronger chemical bonds of potassium ions also endow gorilla glass with flexibility. In case of slight bending, the chemical bonds will not break, and after the external force is removed, the chemical bonds will reset, which is why gorilla glass is extremely strong.
It seems that this principle is quite simple, but gorillas are much more famous than ordinary glass for a reason. The thin surface of the glass is dense, so only the outermost glass can be exchanged during ion exchange, so the super scratch resistant layer is very thin, and the improvement of the glass is very limited. The gorilla glass can make the outermost protective layer very thick, so that the replacement of potassium and sodium ions can take place more inside the glass, making the protection effect more obvious, which is what ordinary glass can not do.
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