Technical Parameters
     
 
DOCERAM Type Unit Electrowhite Slim A-99S A-997 Spark Tianit
Material - Steatite Al2O3  95-97% Al2O3  >99% Al2O3  >99.7% TiO2  95% TiO2  95%
Colour - white white, ivory, pink, red, salmon ivory, pink ivory, light pink black yellow
Density g/cm3 2.7 3.7 3.85 3.9 4 4
Flexural Strength MPa 150 300 340 390 70 70
Compressive Strength MPa 900 3,400 3,600 3,900 600 600
Modulus of Elasticity (young) GPa 120 350 380 390 - -
Impact Resistance MPa m1/2 - 4.0 5.0 5.2 - -
Weibull Modulus m - 10 10 12 - -
Vickers Hardness HV 0.5 - 1,800 1,900 2,000 900 900
Thermal Expansion Coefficient 10-6 K-1 6.0 - 9.0 5.0 - 8.3 5.4 - 8.3 5.5 - 8.4 8.5 8.5
Thermal Conductivity W/mK 2.0 - 2.5 24 27 28 25 25
Thermal Shock Resistance ∆T°C 100 250 270 280 - -
Maximum Use Temperature °C 1,200 1,600 1,650 1,700 - -
Volume Resistivity at 20°C Ωcm > 1013 > 1014 > 1014 > 1015 < 102 > 1010
Dielectric Strength kV/mm 20 20 25 30 - -
Open Porosity % 0 0 0 0 0 0
Dielectric Constant εr +160/+70 10 10 10 - -
Dielectric Loss Angle tan δ - 0.001 0.001 0.0005 - -
 
     
These properties were measured on test samples. The values are typical material properties and may vary according to product configuration, geometry and manufacturing process.

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