xensation-ball-drop

xensation-3d-set-drop-test

xensation3d_strengthening

SCHOTT Xensation^® 3D
Chemical strengthened lithium alumino-silicate cover glass for tough applications – from smartphone to safety glazing

Key-Benefits

Outstanding results in set drop performance for very high survival likelihhod after smartphone drops
Extremely high impact and bending strength for thinner, sleeker and more touch sensitive solutions
High scratch and wear resistance for superior aesthetic appeal, durability, strength and reliability even after surface damage
Thermal bending at similar temperatures to soda-lime glass
Manifold combinations of CS and DoL possible

Mechanical Properties
Density ρ	2.49 g/cm³
Young’s Modulus E	83 kN/mm²
Poisson’s ratio ν	0.22
Shear Modulus G	34 kN/mm²
Knoop Hardness HK _0.1/20
non-strengthened	590
strengthened	740
Vickers Hardness HV _0.2/20
non-strengthened	640
strengthened	690

Optical Properties
Refractive Index at	365 nm	595 nm	640 nm
Core Glass	1.548	1.528	1.525
Compression Layer KNO₃ pure
Compression Layer KNO₃ pure	1.56	1.53	1.53
Photoelastic Constant nm/(cm*MPa)	29.6	27.4	27.2
Transmittance _τ	0.7 mm	3.0 mm	8.0 mm
840 nm	> 91 %	> 91 %	> 91 %
560 nm	> 91 %	> 90 %	> 90 %
380 nm	> 90 %	> 85 %	> 85 %

Thermal Properties
Thermal Conductivity λ _{(25 °C)}	1.22 W/(m·K)¹
Specific Heat Capacity C_p _{(20 °C; 100 °C)}	0.9 J/(g·K)
Coefficient of Mean Linear Thermal Expansion α _{(20 °C; 300 °C)}	8.5 · 10^-6 K^-1
Transformation Point T_g	505 °C
Annealing Point (10¹³ dPas)	515 °C
Softening Point (10^7.6 dPas)	720 °C
Working Point (10⁴ dPas)	1070 °C

Electrical Properties*
Frequency (MHz)	Dielectric Constant (ɛ́)	Loss Tangent (tan δ)
1	7.60	0.0064
54	7.37	0.0063
480	7.35	0.0082
825	7.22	0.0088
912	7.22	0.009
1977	7.18	0.010
2170	7.17	0.010
2986	7.15	0.010

* These values are no guaranteed data – for customer orientation only.

Chemical Properties
Hydrolytic resistance acc. to DIN ISO 719
Hydrolytic class	HGB 2
Equivalent of alkali (Na₂O) per gram of glass grains [μg/g]	41
Acid resistance acc. to DIN 12116
Acid class	S 3
Half surface weight loss after 6 hours in mg/dm²	10
Alkali resistance acc. to DIN ISO 695
Class	A1
Surface weight loss after 3 hours in mg/dm²	41

Chemical Strengthening*
Compressive stress (K-CS)	capable > 700 MPa
Depth of layer (Na-DoL)	capable > 120 μm
4-Point bending strength	capable > 600 MPa

* Specialized strengthening process is required.

Forms supplied*
Thickness Range:	0.55 – 0.80 mm
Sheet size:	1,150 x 950 mm

* Further thicknesses and sheet sizes are available on request.

Xensation^® 3D - Data Sheet

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