Difference between Gorilla Glass and Dragontrail Glass

Key Difference: Gorilla Glass and Dragontrail Glass are two different types of toughened glass. Gorilla Glass is an alkali-aluminosilicate sheet toughened glass created by Corning Inc. Dragontrail Glass in another type of toughened glass that was created by Asahi Glass Co., in response to Gorilla Glass.

The prices of smartphones being what they are, users have to be very careful that their smartphone lasts as much as possible. However, one on the major concerns for the life of a smartphone is the scratching and breaking of the screen on the phone. As anyone who has ever cracked a phone screen will know, the phone screen is very easy to damage and break. Just putting it in the pocket with keys can be enough to severely scratch the screen; and just dropping the phone once can be enough to shatter the screen completely. This is why there is pressure on smart phone producers to utilize better technology to avoid the breaking of the screens.

Both Gorilla Glass and Dragontrail Glass are responses to such demands. Gorilla Glass and Dragontrail Glass are two different types of toughened glass. Toughened glass is exactly what its name suggest, glass that is toughened in order to increase its strength and reduce scratching and breaking.

Gorilla Glass was created by Corning Inc. It is an alkali-aluminosilicate sheet toughened glass, which means that it is made by immersing the glass sheet in a molten alkaline salt bath. This then uses ion exchange to reduce the glass’s tendency to crack. The use of ion exchange creates compressive residual stress at the surface. In order for a crack to form, the residual stress must be overcome. This process also allows the glass to be thin, while still being scratch and impact resistant.

Gorilla Glass combines thinness, lightness, and damage-resistance. This makes it ideal as the top covering on the display screen of numerous electronics such as smartphones, DVD players, mobile gaming consoles, MP3 players, etc.

Corning started developing Gorilla Glass in 2005, in response for Apple Inc. asking for a type of toughened glass thin enough which could be used in consumer electronics, such as its new iPhone. Gorilla Glass was modifies from Corning’s "Chemcor" glass which was created in 1960.

Dragontrail Glass in another type of toughened glass that was created by Asahi Glass Co., in response to Gorilla Glass. Like Gorilla Glass, Dragontrail Glass is an alkali-aluminosilicate sheet glass that is engineered to combine thinness, lightness and damage-resistance. However, unlike Gorilla Glass, Dragontrail Glass is made via a float process as opposed to the ion-exchange method.

Dragontrail Glass is considered to be six times stronger than conventional soda-lime glass. Its properties are its strength, hardness, and high scratch resistance. It can also be made quite thin while still maintaining its properties.

Comparison between Gorilla Glass and Dragontrail Glass:

 

Gorilla Glass

Dragontrail Glass

Type of

An alkali-aluminosilicate sheet glass, a toughened glass

An alkali-aluminosilicate sheet glass, a toughened glass

Company

Corning Inc.

Asahi Glass Co.

Launched

2007. Gorilla Glass 2 in 2012. Gorilla Glass 3 in 2013. Gorilla Glass 4 in 2014.

2011

Manufacturing Process

Ion-Exchange Method

Float Process

Features

  • Enhanced retained strength after use
  • High resistance to scratch and sharp contact damage
  • Improved drop performance
  • Superior surface quality
  •  
  • Scratch-resistant
  • Scratches are less noticeable
  • Crack-resistant even if scratches are made

 

Applications

  • Ideal protective cover for electronic displays in:
    • Smartphones
    • Laptop and tablet computer screens
    • Mobile devices
  • Touchscreen devices
  • Optical components
  • High strength glass articles
  • Smartphones, tablet PCs and other devices, many of which feature designs where touchscreen panels

Advantages

  • High scratch resistance
  • Thin glass without fragility
  • Hardness – with a Vickers hardness test rating of 622 to 701
  • Recyclable
  • Gorilla Glass 2 is 20% thinner than the original Gorilla Glass.
  • Gorilla Glass 3 is up to three times more scratch-resistant than Gorilla Glass 2
  • Gorilla Glass 3 is 40% more scratch-resistant, in addition to being more flexible than Gorilla Glass 2
  • Gorilla Glass 3 has silver ion doping that can effectively kill over 90% of bacteria.
  • Gorilla Glass 4 is 20-25% thinner than Gorilla Glass 3.
  • Gorilla Glass 4 is twice as strong as any other cover glass in the market.
  • Six times stronger than conventional soda-lime glass
  • Highly resistant to scratches
  • Very Tough to Break
  • Very Thin and Lightweight glass
  • Very Durable Glass
  • Allowing thin glass without fragility
  • Hardness – with a Vickers hardness test rating of 595 to 673
  • Environmental Friendly – Does not contain lead, arsenic and antimony

Image Courtesy: talkandroid.com, phys.org

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