Sapphire Glass Might Be 3X Stronger Than Gorilla Glass

Posted Mar 21, 2013

Gorilla Glass is an alkali-aluminosilicate sheet glass built by glassmaker, Corning.  The third generation of Corning Gorilla Glass is going to be used on the upcoming Samsung Galaxy S 4 smartphone.  We may see a tougher type of glass used on future smartphones made from sapphire.

Sapphire glass is already being used for multiple purposes.  Sapphire glass is currently used by the military and is used as the surface of the iSight camera lens.  Sapphire is transparent and is 3 times tougher than current Gorilla Glass.  It is also more scratch resistant than current glass that is used.  Sapphire is tough enough to be compared to diamonds, yet it is much cheaper.

One of the biggest bottlenecks for using sapphire instead of Gorilla Glass is cost.  Gorilla Glass costs around $3 per piece of slab to produce and the same sized slab of sapphire costs $30.  Sapphire glass manufacturers are predicting that the prices for the technology will soon start to drop.  According to Pocket-Lint, GT Technologies claims that the technology will drop to 3-4 times a Gorilla Glass panel at around $9-$12 per unit.

The higher cost may soon be justified because smartphones are notorious for shattering if it does not have a case around it.

[Image Credit: A Sapphire Ring On The Table via BigStockPhoto]