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Corning® Eagle XG® LCD Glass Free of Heavy Metals

 

Description:
Corning® Eagle XG® is a borosilicate glass specifically designed for high performance LCD’s. It is considered environmentally friendly as it contains no heavy metals (arsenic, antimony, barium, or halides). The glass also features high surface quality, excellent thermal properties, low density, and high resistance to chemicals.

 

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Features: Applications:
  • Environmentally friendly (no heavy metals)
  • Excellent surface quality
  • Good thermal properties
  • Low density
  • Chemical durability
  • Liquid crystal displays (LCDs)
  • Lightweight optical windows

Physical Properties:

Mechanical:
  • Density (20 °C, 68 °F)
  • Young’s Modulus
  • Poisson’s Ratio
  • Shear Modulus
  • Vickers Hardness (200 gm load, 25 sec dwell)
2.38 g/cm3
73.6 GPa
0.23
0.1 GPa
640
148.5 lb/ft3
10.7Mpsi
0.23
4.4 Mpsi

Viscosity:

  • Working Point (104 poises)
  • Softening Point (107.6 poises)
  • Annealing Point (1013 poises)
  • Strain Point (1014.5 poises)
1293 °C
971 °C
722 °C
669 °C
2359 °F
1780 °F
1332 °F
1236 °F

Thermal Expansion:

  • 0 – 300 °C (32 – 572 °F)
  • Room Temperature to Setting Point
    25 – 675 °C (77 – 1247 °F)
31.7 x 10-7/°C

 

35.5 x 10-7/°C

17.7 x 10-7/°F

 

19.7 x 10-7/°F

Optical:

  • Index of Refraction @
435.8nm 1.5198
467.8nm 1.5169
480.0nm 1.5160
508.6nm 1.5141
546.1nm 1.5119
589.3nm 1.5099
643.8nm 1.5078
435.8nm 1.5198
467.8nm 1.5169
480.0nm 1.5160
508.6nm 1.5141
546.1nm 1.5119
589.3nm 1.5099
643.8nm 1.5078
  • Birefringence Constant:
(331 nm/cm)/(kg/mm2)

Electrical

  • Log10 Volume Resistivity:
(250°C, 482°F)
(500°C, 932°F)
12.9
8.8

Dimensions:

  • Thicknesses: 0.0433”, 0.0275” (0.7mm, 1.1mm)
  • Sizes: Up to 61” x 52” (1549.4 x 1320.8mm)

 

UV-Transmission
Optical-Transmission

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