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99.5% Alumina, porous body
Categories: Ceramic; Oxide; Aluminum Oxide

Material Notes: Good Thermal Shock resistance, Tc value = 835-1100°C (1535-2010°F).

Key Words: aluminum oxide
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Physical PropertiesOriginal ValueComments
Density 2.40 - 3.40 g/cc
Water Absorption 7.0 - 8.0 %24 hrs
Open Porosity 7.25 %average pore size, 2-3 µm.
 
Mechanical PropertiesOriginal ValueComments
Flexural Strength 69.0 - 150 MPa
Compressive Strength 69.0 - 860 MPa
Charpy Impact, Notched 0.340 J/cm²
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 560000 ohm-cm
@Temperature 900 °C
 7.50e+7 - 1.00e+9 ohm-cm
@Temperature 500 °C
 8.50e+13 - 1.00e+14 ohm-cm
@Temperature 100 °C
 1.00e+14 ohm-cm
@Temperature 25.0 °C
Dielectric Strength 1.97 kV/mmac
 
Thermal PropertiesOriginal ValueComments
CTE, linear 5.10 µm/m-°C
@Temperature 25.0 - 200 °C
Thermal Conductivity 17.0 W/m-K
@Temperature 38.0 °C
 
Component Elements PropertiesOriginal ValueComments
Al2O3 99.5 %

References for this datasheet.

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BA2F / 140

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