You may be hearing a lot about Gorilla Glass when it comes to Smartphone’s. One of the specifications of modern smartphones is the presence of Gorilla Glass, so what exactly is this type of glass? How does it affect your Smartphone purchase?
Find out more in today’s article.
What is Gorilla Glass?
Gorilla Glass is the registered trademark of a US company called Corning Inc. and is a type of tempered alkali-aluminosilicate glass. This glass is used to protect the displays of modern Smartphone’s and tablets, which, being portable devices, are prone to hours of rough usage. Gorilla Glass is scratch- and collision-resistant, perfect as a protecting cover for your phone’s display.
How is Corning Gorilla Glass Manufactured?
Glass is a natural phenomenon created by certain rocks and minerals being exposed to extremely high temperatures, which transform them into an amorphous state. Silicon is one of the most common ingredients of glass. Commercial preparation of glass requires silicon compound silicon dioxide (SiO2). SiO2 combined with other chemicals including aluminum creates aluminosilicate glass.
In Corning’s manufacturing process for Gorilla Glass, the SiO2 compound is mixed with sodium ion as well before processing it at incredibly high temperatures to create the glass melt. Sodium ions play an important part in Gorilla Glass manufacturing process. The molten glass is poured into a V-shaped container known as “isopipe,” and robotic arms are used to draw out sheets of glass from the overflowing isopipe. Each sheet created in this process tends to be nearly half a millimeter thick. This process is known as fusion manufacturing, which produces extremely thin sheets of glass with great surface quality.
The second step of the manufacturing process is known as ion-exchange process. In this process, chemical ions (charged atoms) are embedded into the sheet of glass through a dipping process. The processed Gorilla Glass already contains sodium ions as mentioned earlier. A sheet of glass is dipped into a bath of molten salt containing potassium ions at 400 degrees Celsius.
In this process, charged sodium ions leave the glass, and in their place, potassium moves in. As potassium atoms are larger than sodium, they take up more room in the glass, creating more compressive stress on the glass sheet. This extra strength gives the glass resistance to scratch and physical damage. Afterwards, the glass goes through rigorous testing process to check its performance under various real-life stress situations.
What Type of Phones Have This Glass?
Corning continues to improve this glass-manufacturing technology; the company has released Gorilla Glass 3 for many mobile devices. Samsung Galaxy S5, Galaxy Note 3, HTC One M8, Sony Xperia Z2, etc., are some of the devices that come with Gorilla Glass 3 protection.