Schott D 263 Thin Borosilicate Glass

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Schott D 263 Thin Borosilicate Glass
Categories:	Ceramic; Glass; Optical; Oxide; Silicon Oxide
Material Notes:	D 263 is a low alkali borosilicate glass that is produced by melting the purest raw materials. As such, it is very resistant to chemical attack. D 263, with its specific properties and large range of different thicknesses with tight tolerances, is exceptionally well suited for a number of applications including: liquid crystal displays, optoelectronics, touch control panels, sensors, electroluminescent displays and solar cells. Due to a special down draw production process, D 263 glass sheets are marked by fire-polished surfaces; this glass type can be used without ground and polished surfaces. Information provided by SCHOTT North America.
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Physical Properties	Original Value	Comments

Density	2.51 g/cc
Thickness	30.0 - 1100 microns

Mechanical Properties	Original Value	Comments
Hardness, Knoop	590	HK₁₀₀
Modulus of Elasticity	72.9 GPa
Poissons Ratio	0.208
Shear Modulus	30.1 GPa

Electrical Properties	Original Value	Comments
Volume Resistivity	1.70e+14 ohm-cm	RT
	3.50e+6 ohm-cm @Temperature 350 °C
	1.60e+8 ohm-cm @Temperature 250 °C
Surface Resistance	1.00e+15 ohm	RT
Dielectric Constant	6.7 @Frequency 1e+6 Hz
Dielectric Strength	16.5 kV/mm
Dissipation Factor	0.0061 @Frequency 1e+6 Hz

Thermal Properties	Original Value	Comments
CTE, linear	7.20 µm/m-°C @Temperature 20.0 - 300 °C
Specific Heat Capacity	0.820 J/g-°C @Temperature 20.0 - 100 °C
Thermal Conductivity	0.926 W/m-K @Temperature 0.000 °C
	1.076 W/m-K @Temperature 100 °C
	1.153 W/m-K @Temperature 200 °C
	1.248 W/m-K @Temperature 500 °C
Transformation Temperature, Tg	557 °C
Softening Point	736 °C	10^7.6 dPa-s
Annealing Point	557 °C	10¹³ dPa-s
Strain Point	529 °C	10^14.5 dPa-s

Optical Properties	Original Value	Comments
Refractive Index	1.5231 @Wavelength 588 nm	n_d
	1.5255 @Wavelength 546 nm	n_e
Abbe Number	55	v_e
Optical Dispersion	0.0096	n_F - n_C
Transmission, Visible	91.7 % @Thickness 1.10 mm

Descriptive Properties
Stress Optical Coefficient	3.4	(1.02x10^-12 m²/N

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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CSGT0002 / 1987

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