IN IPHONE 6 SAPPHIRE CRYSTALS WILL REPLACE GORILLA GLASS

As we know the upcoming Iphone 6 the display will be made up Sapphire Crystal which is currently using in 5s in lens cover and above touch ID

WHY APPLE SHOWN INTEREST IN SAPPHIRE

On the hardness scale, the only material tougher than sapphire is diamond

It is immensely scratch resistant in a way that no other comparable material is — both in terms of “flaw initiation” (i.e. when it starts to scratch) and toughness (when it cracks). Its fracture toughness is around 4 times greater than that of Gorilla Glass.

SAPPHIRE

The sapphire is a gem stone which is naturally occurring or can be man made. it is not the glass

variety of the mineral corundum, an aluminium oxide (α-Al2O3). if we measure the hardness of sapphire and compare it with diamond then it is just right behind the diamond.

 Diamond having hardness on mohs scale 10 while sapphire having impressive 9.25 on the Mohs scale.

SHORTCOMING WITH SAPPHIRE

The Crystal sapphire is heavier than glass and the trend is to make phones lighter.

Also sapphire is more expensive than glass and process takes times to produce sapphire crystal.

another problem is oil repelling coatings that are essential to reducing smudges on a screen do not apply well to sapphire.

HOW APPLE HAS TACKLED ALL SHORT COMINGS

Based on the patents filed by Apple, the sapphire iPhone screen is likely to have a base glass layer, main sapphire layer and an ultra-thin glass layer on top of sapphire which will troubleshoot the problem of Oil repelling coating which was not possible with sapphire.Which also short out the problem of weight and cost as glass layer is fused with sapphire layer.

Apple always has given direction to mobile market by doing a new innovation and by setting a new benchmark as last Iphone 5 came with Siri Virtual assistant which led other competitor to launch Google Now,Cornata etc.
Still there are lot of features which is yet to get revealed till then stay tuned .
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