Xensation®

Xensation® is a floated alumino-silicate glass that offers an outstanding level of mechanical impact and bending strength, as well as high resistance to scratches. This specialty glass has been designed for highly efficient chemical strengthening (via an ion exchange treatment) to achieve strength performance levels ideally suited for cover glass protecting touch screen devices, as well as protective and ruggedized light-weight glazing solutions.
The unique glass composition of Xensation® results in the most robust and reliable cover glass available on the market today.

Key-Benefits of Xensation®

  • Extremely high impact and bending strength enables thinner, sleeker and more sensitive devices without compromising on strength
  • High scratch resistance and tolerance for superior aesthetic appeal and durability
  • Pristine, display grade cover glass for a clear, elegant visual quality
  • Unique glass composition results in the most robust and reliable cover glass available
  • Easy to process according to typical industry standards

Xensation® is produced using SCHOTT’s unique microfloat process

Xensation® Cover is produced using SCHOTT’s unique microfloat process

Technical Data

Thermal Properties
Thermal Conductivity λ (25 °C)
0.96 W/(m•K)
Specific Heat Capacity cp (20 °C; 100 °C) 0.84 KJ/(g•K)
Coefficient of Mean Linear Thermal Expansion α (20 °C; 300 °C) 8.8 • 10-6 K-1*
Transformation Point Tg 615 °C
Annealing Point (1013 dPas) 635 °C
Softening Point (107.6 dPas) 880 °C
Working Point (104 dPas) 1265 °C

*cooled according to DIN
Chemical Properties
Hydrolytic resistance acc. to DIN ISO 719
Class HGB 1 
Acid Resistance acc. to DIN 12116 Class S 4
Alkali resistance acc. to DIN ISO 695 Class A 1
Chemical Strengthening
Compressive Stress capable > 900 MPa
Depth of Layer capable > 50 μm
4-Point Bending Strength capable > 800 MPa
Optical Properties
Refractive Index at 588 nm (nd) 633 nm
780 nm
Core Glass 1.508 1.506 1.502
Compression Layer
   KNO3 pure
1.516 1.514 1.510
Transmittance τ (Glass Thickness 0.7mm)      
   840 nm     >91.5 %
   560 nm     >91.5 %
   380 nm     >90 %
   Photoelastic Constant     29.2 nm/cm/MPa
Electrical Properties*
Frequency
MHz
Dielectric Constant
ε´
Loss Tangent
tanδ
1 7.74 0.011
54 7.49 0.008
480 7.40 0.009
825 7.38 0.010
912 7.38 0.010
1977 7.35 0.012
2170 7.35 0.012
2986 7.34 0.012
Electric Volume Resistivity ρD for A.C. at 50Hz
v = 250 °C 1.5 • 106 Ω•cm
v = 350 °C 8.9 • 104 Ω•cm

* These values are no guaranteed data - for customer orientation only.cooled according to DIN
Mechanical Properties
Density 2.477 g/cm3*
Young’s Modulus E 74 kN/mm2
Poisson’s Ratio 0.215
Shear Modulus 30 kN/mm2
Knoop Hardness HK 0.1/20  
   Non-strengthened 534
   Strengthened 639
Vickers Hardness HV 0.2/20  
   Non-strengthened 617
   Strengthened 681

*cooled according to DIN
Sheet Dimensions
Sheet Size*: 1150 x 950 mm
  475 x 575 mm
Thickness Range: 0.5 - 3.0 mm

*Other sizes on request.