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Schott AF 45 Thin Borosilicate Glass

Category Ceramic , Glass , Optical , Oxide , Silicon Oxide
Manufacturer Schott North America
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Schott AF 45 Thin Borosilicate Glass.pdf
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Material Notes:
AF 45 is an alkali-free modified borosilicate glass with a high content of BaO and Al2O3. AF 45 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, electroluminescent displays, CCD covers, hybrid circuits and solar cells. Due to a special down draw production process, AF 45 glass sheets are marked by fire-polished surfaces; this glass type can be used without ground and polished surfaces. AF 45 offers excellent thermal resistance for high temperature applications up to approximately 600°C.Information provided by SCHOTT North America.
Physical Properties Metric English Comments
Density 2.72 g/cc
0.0983 lb/in³
Thickness 50.0 - 1100 microns
1.97 - 43.3 mil
Mechanical Properties Metric English Comments
Hardness, Knoop 555
555
HK<sub>100</sub>
Modulus of Elasticity 66.0 GPa
9570 ksi
Poissons Ratio 0.235
0.235
Shear Modulus 26.7 GPa
3870 ksi
Thermal Properties Metric English Comments
CTE, linear 4.50 µm/m-°C

@Temperature 20.0 - 300 °C
2.50 µin/in-°F

@Temperature 68.0 - 572 °F
Thermal Conductivity 0.930 W/m-K
6.45 BTU-in/hr-ft²-°F
1.04 W/m-K

@Temperature 87.0 °C
7.22 BTU-in/hr-ft²-°F

@Temperature 189 °F
1.10 W/m-K

@Temperature 127 °C
7.63 BTU-in/hr-ft²-°F

@Temperature 261 °F
1.13 W/m-K

@Temperature 166 °C
7.84 BTU-in/hr-ft²-°F

@Temperature 331 °F
Transformation Temperature, Tg 662 °C
1220 °F
Softening Point 883 °C
1620 °F
10<sup>7.6</sup> dPa-s
Annealing Point 663 °C
1230 °F
10<sup>13</sup> dPa-s
Optical Properties Metric English Comments
Refractive Index 1.5255

@Wavelength 588 nm
1.5255

@Wavelength 588 nm
n<sub>d</sub>
1.5275

@Wavelength 546 nm
1.5275

@Wavelength 546 nm
n<sub>e</sub>
Transmission, Visible 91.2 %

@Thickness 1.10 mm
91.2 %

@Thickness 0.0433 in
Electrical Properties Metric English Comments
Volume Resistivity 1.60e+9 ohm-cm

@Temperature 500 °C
1.60e+9 ohm-cm

@Temperature 932 °F
3.20e+11 ohm-cm

@Temperature 350 °C
3.20e+11 ohm-cm

@Temperature 662 °F
6.00e+13 ohm-cm

@Temperature 250 °C
6.00e+13 ohm-cm

@Temperature 482 °F
Dielectric Constant 6.2

@Frequency 1e+6 Hz
6.2

@Frequency 1e+6 Hz
Dissipation Factor 0.00090

@Frequency 1e+6 Hz
0.00090

@Frequency 1e+6 Hz
Descriptive Properties Value Comments
Abbe Value 62.2
v<sub>e</sub>
Dispersion 0.0084
n<sub>F</sub> - n<sub>C</sub>
Strain Point 627°C
10<sup>14.5</sup> dPa-s
Stress Optical Coefficient 3.2
(1.02x10<sup>-12</sup> m<sup>2</sup>/N
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