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Master Bond adhesives

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95% Alumina, vitreous body
Categories: Ceramic; Oxide; Aluminum Oxide

Material Notes: Good Thermal Shock resistance, Tc value = 800-1100°C (1470-2010°F).

Key Words: aluminum oxide
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Physical PropertiesOriginal ValueComments
Density 3.61 - 3.75 g/cc
Water Absorption 0.00 %24 hrs
Open Porosity <= 1.0 %Hermetic (helium mass spectrometer test on 0.254 mm (0.010 in) sections)
 
Mechanical PropertiesOriginal ValueComments
Knoop Microhardness 1720
Hardness, Mohs 9.0
Tensile Strength, Ultimate 170 - 240 MPa
Modulus of Elasticity 270 - 295 GPa
Flexural Strength 310 - 345 MPa
Charpy Impact, Notched 0.700 - 0.860 J/cm²
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 6.00e+8 ohm-cm
@Temperature 700 °C
 9.00e+14 ohm-cm
@Temperature 100 °C
 1.00e+16 ohm-cm
@Temperature 25.0 °C
Dielectric Strength 9.84 - 15.7 kV/mm(AC)
 0.790 - 1.18 kV/in
@Temperature 1000 °C
AC
 3.94 - 4.72 kV/in
@Temperature 500 °C
AC
 
Thermal PropertiesOriginal ValueComments
CTE, linear 5.70 - 6.67 µm/m-°C
@Temperature 25.0 - 200 °C
 6.70 - 7.65 µm/m-°C
@Temperature 25.0 - 600 °C
 7.60 µm/m-°C
@Temperature 25.0 - 800 °C
 8.07 µm/m-°C
@Temperature 25.0 - 700 °C
 8.45 - 9.14 µm/m-°C
@Temperature 25.0 - 1000 °C
Specific Heat Capacity 0.437 - 0.442 J/g-°C
Thermal Conductivity 19.0 - 22.0 W/m-K
@Temperature 38.0 °C
 35.0 W/m-K
@Temperature 425 °C
 43.0 W/m-K
@Temperature 870 °C
Maximum Service Temperature, Air 1600 - 1700 °Cmaximum working temperature
 
Component Elements PropertiesOriginal ValueComments
Al2O3 95 %

References for this datasheet.

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BA2D / 138

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