Corning® Gorilla® Glass

Abrisa Technologies custom fabricates and provides optical coatings on Corning’s Gorilla® Glass 3 with Native Damage Resistance™, an alkali-aluminosilicate thin sheet glass that is better able to survive the real-world events that most commonly cause glass failure. With its new core composition, this glass enables improved damage resistance and toughness by helping to prevent the deep chips and scratches that cause glass to break.

Features

Corning® Gorilla® Glass superior composition allows a deep layer of chemical strengthening than is possible with most other chemically strengthened glasses, making it more durable and more damage resistant
Abrisa Technologies can strengthen, fabricate, screen print and optically coat Corning® Gorilla® Glass
Abrisa Technologies can apply anti-reflection optical coatings, ITO coatings and Oleophobic coatings on Corning® Gorilla® Glass
Glass designed with improved native damage resistance
Enhances retained strength after use
High resistance to scratch and sharp contact damage
Superior surface quality

Applications

Ideal protective cover for electronic displays in:
Smartphones
Laptop and tablet computer screens
Mobile devices
Touchscreen devices
Optical components
High strength glass articles
Protective cover glass
Handheld devices
Avionics and defense
Instrumentation
Ruggedized display

Knoop Visual Scratch Test

After Ion Exchange

Competitor Glass (4 N)

500µm

Knoop Visual Scratch Test - Competitor Glass

Gorilla® Glass 2 (4 N)

500µm

Knoop Visual Scratch Test - Gorilla® Glass 2

Gorilla® Glass 3 with NDR™ (4 N)

500µm

Knoop Visual Scratch Test - Gorilla® Glass 3 with NDR™

Thicknesses

0.4 mm
0.55 mm
0.8 mm

1.1 mm
1.5 mm
2.0 mm

Chemical Strengthening

Compressive stress

≥950 MPa @ 40 µm DOL

Depth of Layer

≥50 µm

Properties

Density

2.39 g/cm³

Young’s Modulus

69.3 GPa

Poisson’s Ratio

0.22

Shear Modulus

28.5 GPa

Vickers Hardness (200 g load)

Un-strengthened

534 kgf/mm²

Strengthened

649 kgf/mm²

Fracture Toughness

0.66 MPa m^0.5

Coefficient of Expansion (0 ̊C-300 ̊C)

75.8x10^-7 / ̊C

Viscosity

Softening Point (10^7.6 poises)

900 ˚C

Annealing Point (10^13.2 poises)

628 ˚C

Strain Point (10^14.7 poises )

574 ˚C

Optical

Refractive Index (590 nm)

Core glass*

1.50

Compression layer

1.51

Photo-elastic constant

31.9 nm/cm/MPa

* Core index is used for FSM-based measurements since it is unaffected by ion-exchange conditions.

Corning® Gorilla® Glass Optical Properties

Chemical Durability

Durability is measured via weight loss per surface area after immersion in the solvents shown below. Values are highly dependent upon actual testing conditions. Data reported is for Cornings Gorilla Glass 3 with NDR™.

Reagent

Time

Temperature (C°)

Weight Loss (mg/cm²)

HCl – 5%

24 hrs

0.6

NH4F:HF – 10%

20 min

2.1

HF – 10%

20 min

12.3

NaOH – 5%

6 hrs

1.9

Electrical Properties

Terminated coaxial line similar to that outlined in NIST Technical Notes 1520 and 1355-R.

Frequency (MHz)

Dielectric Constant

Loss Tangent

7.59

0.022

163

7.48

0.022

272

7.44

0.021

381

7.42

0.022

490

7.38

0.021

599

7.37

0.022

912

7.30

0.023

1499

7.26

0.023

1977

7.23

0.023

2466

7.20

0.024

2986

7.19

0.025

Greater Damage Resistance

It takes more load to initiate radial cracks in the glass.

Enables the use of Thinner Cover Glass

Devices benefit from greater retained strength.

Enables Greater Strength

Corning® Gorilla® Glass 3 with NDR exhibits tighter strength distribution.

Corning® Gorilla® Glass Greater Strength Graph

Greater Retained Strength

All Glass Materials

Spec Sheet

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