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You are here: MacNN Forums > News > Tech News > Corning: Gorilla Glass 3 stronger, better, cheaper, more eco-friendly

Corning: Gorilla Glass 3 stronger, better, cheaper, more eco-friendly
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MacNN Staff
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May 23, 2013, 10:22 AM
 
A new test video, along with explanation and question period, shows Corning firing back at rumors that Apple and other clients may switch to using a sapphire glass cover in future products. In addition to showing that Corning's Gorilla Glass 3 is stronger and more resistant to damage, the US-based glass company says that their product is more eco-friendly, cheaper to make, and more flexible for designing products.

Apple, along with other companies, uses manufactured sapphire as a material for things like the covering of the lens on the iPhone 5, noting that it is exceptionally resistant to scratches. A recent rumor has suggested that Apple could switch to that material for other parts of the next iPhone, including the home button (in the event that Apple adds a fingerprint sensor to it).

Corning officials point out that Gorilla Glass 3 is about three times less likely to break under force than sapphire, weighs about half as much, requires 99 percent less energy to make, provides for brighter displays and costs one-tenth the price of sapphire glass. The report by Corning seems aimed more at companies other than Apple, which doesn't appear to be planning any move to more sapphire for the overall covering of future mobile devices.

The company also says that it has now reformulated Gorilla Glass to the point where it is thin enough to be used in curved displays -- which could be a key advantage if rumors of an Apple smart watch turn out to be true. Corning says it is also working on variations that can reduce reflection and thus make it easier to use in bright sunlight. The glass also incorporates anti-microbial technology, which could lead to the products' further expansion into medical equipment and other related products.

Currently, around 1.5 billion devices in circulation use some form of Gorilla Glass. The glass is strengthened with an alkali-aluminosilicate and used in some 1,000 products across 33 different companies. The Kentucky-based company has a special relationship with Apple, however, as co-founder and former CEO Steve Jobs was the man who persuaded Corning to bring Gorilla Glass out of "retirement" for the original iPhone. The product has since gone on to earn Corning billions and become one of its most recognizable brands.

An executive for Corning summarized the video's findings by saying that in "one one of our commonly accepted strength tests, sapphire breaks more easily than Gorilla Glass after the same simulated use" and that sapphire's cost and environmental impact were "huge issues" compared to Gorilla Glass 3, which was introduced in January.




( Last edited by NewsPoster; May 23, 2013 at 10:23 AM. )
     
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May 23, 2013, 10:54 AM
 
Odd that the video didn't show the two screens after they were "tumbled" to show which one had more scratches. Could it be that the Gorilla glass did?
     
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May 23, 2013, 11:30 AM
 
The really crucial thing in discussions like this is the "hardness number" or Mohr number of the materials in question. If it isn't mentioned specifically, one can assume that something is being hidden. It's also standard advertising practice to only mention the things you are good at and leave out the failures. Based on all of that, Gorilla Glass is likely to be *less* scratch resistant than sapphire, since they pointedly left out that statistic and (as the above poster noted) don't show the results of the test in the video.
     
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May 23, 2013, 11:30 AM
 
So it's stronger, better, cheaper.. is it also faster?
     
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May 23, 2013, 01:48 PM
 
You guys are correct ... sapphire glass is more scratch-resistant than Gorilla glass (which is precisely why Apple is using it for the lens). But that is its only apparent advantage, and even if Apple chose to use it for the home button, the rest of the cover would be GG3 still, so from a purely Apple perspective its not a big deal either way. Corning's looking to head off other makers changing their whole screen display to a sapphire glass cover, methinks.
Charles Martin
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