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Master Bond adhesives

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Alumina, alpha Al2O3, 99.5%
Categories: Ceramic; Oxide; Aluminum Oxide

Material Notes: Property values below are taken from literature and manufacturer sources. Variations are possible among various commercial grades.

Key Words: aluminum oxide, corundum
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Physical PropertiesOriginal ValueComments
Density 3.90 g/cc
Water Absorption 0.00 %
 
Mechanical PropertiesOriginal ValueComments
Hardness, Mohs 9.0
Tensile Strength, Ultimate 260 MPa
Modulus of Elasticity 370 GPa
Flexural Strength 350 MPa
Compressive Strength 2600 MPa
Poissons Ratio 0.22
Fracture Toughness 4.00 MPa-m½
Shear Modulus 140 GPa
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 1.00e+14 ohm-cm
Dielectric Constant 9.7
Dielectric Strength 9.00 kV/mmWide Variation Between Grades
 
Thermal PropertiesOriginal ValueComments
CTE, linear 7.60 µm/m-°C
@Temperature 25.0 - 400 °C
 8.20 µm/m-°C
@Temperature 20.0 - 1000 °C
Specific Heat Capacity 0.880 J/g-°C
Thermal Conductivity 30.0 W/m-K
 12.0 W/m-K
@Temperature 400 °C
 26.0 W/m-K
@Temperature 100 °C
Maximum Service Temperature, Air 1700 °CNo Load
 
Component Elements PropertiesOriginal ValueComments
Al2O3 99.5 %

References for this datasheet.

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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BA5A / 143

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