POROUS CORDIERITE CERAMIC DISC

POROUS CORDIERITE CERAMIC DISC

HIGH PURITY POROUS CORDIERITE CERAMIC 

Made from the high purity mineral Mg₂Al₄Si₅O₁₈ which is also 2MgO·2Al₂O₃·5SiO₂, a magnesium alumino-silicate. 

This material is an extremely lightweight material with low thermal expansion and excellent strength, rigidity and thermal shock resistance; and has very good corrosion resistance to chemicals at high temperature, and high use temperature. It may be used for a variety of electrical, mechanical, and thermal applications

The specifications for these components are as follows:

Outside Diameter: Approximately 3.470” +/- 0.010" (90.4 mm)

Thickness: Approximately 0.100" +/- 0.005"  (2.5 mm)

Specific Gravity or Density:   2.6 g/cm3

Water Absorption or Gas Permeability -- Porosity: ~50%

Fusion Temperature or Melting Temperature:   1450 °C or 2642 °F

Maximum Working Temperature:   1200 °C or 2200 °F

Thermal Conductivity:  0.3 W/m* K

Expansion Coefficient or CTE from RT-600°C:  3 x 10^-6 inches/°C

Electrical Resistivity at 20 C:   10¹⁴ Ohm*cm

Electrical resistance at 600 C:  10⁸ Ohm*cm

Modulus of Elasticity:   14 x 10⁶ p.s.i. or 250 GPa.

Dielectric Constant @ 6 GHz: Approximately 6.4 @RT

Dielectric Loss @ 6 GHz: Approximately 0.0005 @RT

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