Specications subject to change
Optical
Table 42. Optical
Refractive Index (590 nm)
Core glass** 1.50
Compression layer 1.51
Photo-elastic constant 30.3 nm/cm/MPa
** Core index is used for FSM-based measurements since it is unaected by ion-exchange conditions.
Chemical Durability
Durability is measured via weight loss per surface area after immersion in the solvents shown below. Values are highly dependent upon
actual testing conditions. Data reported is for Corning Gorilla Glass 5.
Table 43. Chemical Durability
Reagent Time Temperature (ºC) Weight Loss (mg/cm2)
HCl - 5% 24 hrs 95 5.9
NH4F:HF - 10% 20 min 20 1.0
HF - 10% 20 min 20 25.2
NaOH - 5% 6 hrs 95 2.7
Electrical
Table 44. Electrical
Frequency (MHz) Dielectric Constant Loss Tangent
54 7.08 0.009
163 7.01 0.010
272 7.01 0.011
272 7.00 0.010
490 7.99 0.010
599 7.97 0.011
912 7.01 0.012
1499 6.99 0.012
1977 6.97 0.014
2466 6.96 0.014
2986 6.96 0.014
Terminated coaxial line similar to that outlined in NIST Technical Notes 1520 and 1355-R
Technology and components
49
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