Introduction History Manufacturing process Mechanical properties Applications Future applications

1. Submitted by:-
Anish Agarwal 101018
Akkahshh Agarwaal 101020
Priyansh Agrawal 101025
Pranjal Agrawal 101028
ENGINEERING MATERIAL SCIENCE

2. CONTENTS
• Introduction
• History
• Manufacturing process
• Mechanical properties
• Applications
• Future applications
• References

3.  Gorilla Glass - specialized toughened
glass developed and manufactured by Corning.
 Scratch-resistant and durable glass product.
 Used to protect the screens of tablets,
smartphone and other mobile devices.
 Lightweight, strong and compatible with touch
screen technologies. As a result of its strength,
screens made of Gorilla Glass can be very thin.

4. Gorilla Glass
1
Gorilla Glass
2
Gorilla Glass
3
Gorilla Glass
4
Gorilla Glass
5
• 2007 • 2012 • 2013 • 2014 • 2016
• 1.5 mm thick • 20% thinner
than the first
model
• Even more
resistant
• 2x stronger
than its
predecessor
• 4x the strength
as the previous
version
• Survived drops
of up to 1.6
meters

5. Manufacturing process
 Gorilla glass is made from a material called alkali-aluminosilicate, which is
formed by bonding aluminium, silicone and oxygen together.
 First a bled of alkali aluminosilicate is made in a closed environment.
 Then it is heated and casted to form thin sheets of few microns.
 The thin films are brought to room temperature gradually.
 The main process is the ion exchange process, which makes it damage resistance.

6. • The material is immersed in a molten alkaline potassium salt at a temperature
of approximately 400 °C (750 °F).
• Smaller sodium ions in the glass are replaced by larger potassium ions from the
salt bath.
• The larger ions occupy more volume and thereby create a surface layer of high
residual compressive stress at the surface, giving the glass surface increased
strength.
• Due to this surface stress the glass is resistant to scratch and crack progression

8. MECHANICAL PROPERTIES
 Vickers hardness test rating- 622 to 701 (normal glass 500-560)
 Density -2.43g/cm3 (flint glass8-9 g/cm3)
 Young's modulus – 7.67*1010 N/m2
 Coefficient of Expansion 78.8 x 10-7mm /˚c
 Refractive Index (590 nm)-1.51 (flint glass 1.655)

10. Application
 Ideal protective cover for electronic displays in:
- Smartphones
- Laptop and tablet computer screens
- Mobile devices
 Used in wearable devices
 Can be used in watches
 Ford GT sports series recently started using gorilla glass in
windshields

11. Future applications
 Can replace ordinary glass
 Used in submarines
 Boeing is planning to use this glass in its aircraft windows.
 Architectural domes
(with fiber reinforcement)
 Can be used to make doors and windows.

12. References
 https://www.corning.com
 https://electronics.howstuffworks.com
 www.getgorilla.com
 https://www.youtube.com/watch?v=yfDfXywZxIU&t=305s - What is Gorilla Glass?
Explained: Does your screen needs Protection?
 https://www.youtube.com/watch?v=MXDFdWWddy4&t=90s - How Gorilla Glass Works?
Ion Exchange Process!!!