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Low thermal expansion coefficient, excellent
thermal shock resistance, good mechanical
strength, low flexural strength, indifferent
against heat conductor alloys (no reaction between
heat conductor and ceramics) up to 1,000 - 1,200
C, typically used in the heat technology, e.g.
flow heaters, gas burner inserts, catalyst
carriers for cars etc. |
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Technical Parameters |
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Description |
Unit |
Value |
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Density |
g/cm3 |
2 |
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Open Porosity |
% |
>5 |
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Flexural Strength |
MPa |
65 |
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Compressive Strength |
MPa |
350 |
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Modulus of Elasticity (Young) |
GPa |
40 |
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Fracture Toughness |
MPa m1/2 |
- |
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Weibull Modulus |
m |
- |
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Vickers Hardness |
HV 0.5 |
- |
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Poisson's Ratio |
ν |
- |
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Thermal Expansion Coefficient |
10-6 K-1 |
2.5 - 3 |
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Thermal Conductivity |
W/mK |
1.3 - 1.5 |
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Thermal Shock Resistance |
∆T °C |
360 |
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Maximum Use Temperature |
°C |
1,350 |
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Volume Resistivity at 20°C |
Ωcm |
1013 |
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Volume Resistivity at 200°C |
Ωcm |
109 |
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Volume Resistivity at 600°C |
Ωcm |
105 |
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Volume Resistivity at 1,000°C |
Ωcm |
- |
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Dielectric Strength |
kV/mm |
- |
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Dielectric Constant |
εr |
- |
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Dielectric Loss Angle |
tanδ |
- |
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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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