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Ensinger PEI

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Corning Gorilla® Glass 4 Touch Screen Glass  (discontinued **)
Categories: Ceramic; Glass; Optical
Material Notes: Gorilla® Glass 4 is just as thin and light as previous versions of Gorilla® Glass, but has been formulated to deliver dramatically improved damage resistance allowing improved in-field performance. Corning® Gorilla® Glass 4 has been tested for performance when subjected to sharp contact damage, such as asphalt and other real-world surfaces. This glass is widely used in smart phone, tablet, and laptop displays, other touchscreens, optical components, and other high strength glass applications.

Information provided by Corning Incorporated.
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesOriginal ValueComments
Density 2.42 g/cc
Thickness 400 - 1000 micronsStandard; others upon request
 
Mechanical PropertiesOriginal ValueComments
Vickers Microhardness 489kgf/mm²;' unstrengthened (200 g load)
 596kgf/mm²; strengthened (200 g load)
Modulus of Elasticity 65.8 GPa
Compressive Strength >= 850 MPaChemically Strengthened to >50 µm Depth
Poissons Ratio 0.22
Fracture Toughness 0.670 MPa-m½
Shear Modulus 26.0 GPa
 
Electrical PropertiesOriginal ValueComments
Dielectric Constant 7.33
@Frequency 2.986e+9 Hz
 7.34
@Frequency 2.466e+9 Hz
 7.37
@Frequency 1.977e+9 Hz
 7.39
@Frequency 1.50e+9 Hz
 7.43
@Frequency 9.1e+8 Hz
 7.6
@Frequency 5.990e+8 Hz
 7.63
@Frequency 4.90e+8 Hz
 7.66
@Frequency 3.81e+8 Hz
 7.7
@Frequency 2.72e+8 Hz
 7.77
@Frequency 1.63e+8 Hz
 7.89
@Frequency 5.40e+7 Hz
Dissipation Factor 0.023
@Frequency 4.90e+8 Hz
 0.024
@Frequency 5.99e+8 Hz
 0.024
@Frequency 9.12e+8 Hz
 0.024
@Frequency 1.63e+8 Hz
 0.024
@Frequency 2.72e+8 Hz
 0.024
@Frequency 3.81e+8 Hz
 0.025
@Frequency 1.499e+9 Hz
 0.025
@Frequency 1.977e+9 Hz
 0.026
@Frequency 2.466e+9 Hz
 0.026
@Frequency 5.4e+7 Hz
 0.027
@Frequency 2.986e+9 Hz
 
Thermal PropertiesOriginal ValueComments
CTE, linear 8.69 µm/m-°C
@Temperature 0.000 - 300 °C
Softening Point 912 °C107.6 Poise
Annealing Point 646 °C1013.2 Poise
Strain Point 596 °C1014.7 Poise
 
Optical PropertiesOriginal ValueComments
Refractive Index 1.49
@Wavelength 590 nm		core glass
 1.51
@Wavelength 590 nm		compression layer
Transmission, Visible >= 91.5 %
@Wavelength 450 - 2100 nm
IR Transmittance >= 90 %
@Wavelength 2100 - 2500 nm
 >= 91.5 %
@Wavelength 700 - 2100 nm
UV Transmittance 0.0 %
@Wavelength <=250 nm
 >= 91.5 %
@Wavelength 380 nm
 
Descriptive Properties
Photo-elastic Constant30.3 nm/cm/MPa

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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CCORNG14d / 178184

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