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99.6% Alumina, thin-film substrate
Categories: Ceramic; Oxide; Aluminum Oxide

Material Notes:

Key Words: Al2O3, aluminum oxide
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Physical PropertiesMetricEnglishComments
Density 3.90 g/cc0.141 lb/in³
Water Absorption 0.00 %0.00 %24 hrs. (ASTM C373)
 
Mechanical PropertiesMetricEnglishComments
Modulus of Elasticity 370 GPa53700 ksi
Poissons Ratio 0.200.20
Shear Modulus 154 GPa22300 ksiCalculated
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity  >= 1.00e+8 ohm-cm
@Temperature 500 °C
>= 1.00e+8 ohm-cm
@Temperature 932 °F
 >= 1.00e+8 ohm-cm
@Temperature 700 °C
>= 1.00e+8 ohm-cm
@Temperature 1290 °F
 >= 1.00e+12 ohm-cm
@Temperature 300 °C
>= 1.00e+12 ohm-cm
@Temperature 572 °F
 1.00e+14 ohm-cm
@Temperature 25.0 °C
1.00e+14 ohm-cm
@Temperature 77.0 °F
Dielectric Constant  9.9
@Frequency 1000 Hz
9.9
@Frequency 1000 Hz
(± 1%)
 9.9
@Frequency 1e+6 Hz
9.9
@Frequency 1e+6 Hz
(± 1%)
Dielectric Strength 670 kV/mm
@Thickness 0.635 mm,
Frequency 60 Hz
17000 kV/in
@Thickness 0.0250 in,
Frequency 60 Hz
avg. RMS values, AC
Dissipation Factor  0.0020
@Frequency 1e+6 Hz
0.0020
@Frequency 1e+6 Hz
 0.0050
@Frequency 1000 Hz
0.0050
@Frequency 1000 Hz
 
Thermal PropertiesMetricEnglishComments
CTE, linear  6.70 µm/m-°C
@Temperature 20.0 °C
3.72 µin/in-°F
@Temperature 68.0 °F
ASTM C372
 7.50 µm/m-°C
@Temperature 250 °C
4.17 µin/in-°F
@Temperature 482 °F
 8.00 µm/m-°C
@Temperature 500 °C
4.44 µin/in-°F
@Temperature 932 °F
 8.30 µm/m-°C
@Temperature 1000 °C
4.61 µin/in-°F
@Temperature 1830 °F
Thermal Conductivity 34.7 W/m-K241 BTU-in/hr-ft²-°F
 12.6 W/m-K
@Temperature 400 °C
87.4 BTU-in/hr-ft²-°F
@Temperature 752 °F
 25.5 W/m-K
@Temperature 100 °C
177 BTU-in/hr-ft²-°F
@Temperature 212 °F
 
Component Elements PropertiesMetricEnglishComments
Al2O3 99.6 %99.6 %

References for this datasheet.

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BA9B / 146

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