What is Gorilla glass and Why it is so Tough?
Posted by
Akshat Verma in Technology
Gorilla glass is a very thin and tough glass
which is a product of Corning, an American glass manufacturer company,
therefore it is also known as Corning Gorilla Glass. It is an alkali
aluminosilicate sheet glass. The glass is damage and scratch resistant,
and is more expensive than a normal glass. It is used in high end
smartphones, tablets, PC’s and LCD’s. Some of the popular devices using
Gorilla glass are – Samsung Galaxy S II, Samsung Galaxy Note, LG Optimus
2X.
What makes Gorilla Glass so Tough?
Gorilla glass is toughened by a chemical process called ion exchange.
The glass is put in molten potassium salt where at a temperature of
approx. 400 degree celcius (~ 750 F), smaller ions leave the glass and
larger potassium ions replaces them. These larger ions takes more room
and are pressed together. When the glass cools a layer of compress
stress is found on the surface of glass. The special composition of
glass enables potassium ions to diffuse far into the surface, creating
high compressive stress deep into the glass. This layer of compression
makes the surface of the glass more resistant to damage in everyday use.
Corning Gorilla Glass 2
In the beginning of 2012, corning has announced to release a new
version of Gorilla glass which will be 20 percent thinner. The thinner
glass will be much more responsive and sensitive to touch. There is also
an increasing demand for phones having Gorilla Glass display.
Corning Gorilla Glass 3
Gorilla Glass 3 is the latest version of Gorilla Glass that has
unique Native Damage Resistant (NDR) Technology and is more damage
resistant, durable, tougher and thinner than the previous Gorilla Glass
2. Corning has said that the new Gorilla Glass 3 is up to three times
more damage resistant than Gorilla Glass 2.
