EAGLE XG® Material Information Sheet

Product catalog summary

Glass Type and Forms: The document describes an alkaline earth boro-aluminosilicate glass available in fusion drawn sheet form, primarily used as substrates for active matrix flat panel displays.

Mechanical Properties: The glass has a density of 2.38 g/cc (148.5 lb/ft³), Young’s modulus of 73.6 GPa (10.7 x 10⁶ psi), shear modulus of 30.1 GPa (4.4 x 10⁶ psi), Poisson’s ratio of 0.23, and Vickers hardness of 640.

Thermal Properties: The thermal expansion is 31.7 x 10^-7/°C (17.7 x 10^-7/°F) from 0 to 300°C. Thermal conductivity varies with temperature, calculated as the product of thermal diffusivity, specific heat, and density.

Viscosity: The working point is at 1293°C, softening point at 971°C, annealing point at 722°C, and strain point at 669°C.

Electrical Properties: The log₁₀ volume resistivity is 12.9 at 250°C and 8.8 at 500°C. The dielectric constant is 5.27 at 20°C/68°F – 1 kHz.

Chemical Properties: The glass shows excellent weathering resistance and durability, with specific weight loss values provided for various reagents and conditions.

Optical Properties: The refractive index varies with wavelength, and the birefringence constant is 331 (nm/cm)/(kg/mm²).

Contact Information: The document provides contact details for Corning Display Technologies in North America, Japan, China, Taiwan, and Korea.