Elceram - keramické substráty


Properties of ceramics

 

Properties of ceramics

Basic specifications of material with 96 % Al2O3 are shown in the table below.

 

Item

Typical value
  • Alumina content of Al2O3

96 %
  • Color
 white
  • Specific gravity
3,7 g/cm3
  • Surface roughness
0,25 - 0,7 µm
  • Water absorption
0 %
  • Flexular strenght
376 N/mm2
  • Thermal conductivity (@ 25 °C)

24 W/m.K
  • Thermal expansion coefficient
 7,2 . 10-6 / K
  • Dielectric constant (@ 1 MHz)

9,5
  • Dielectric strenght
14 kV/mm
  • Volume resistivity
1011 Ohm.cm