99.5% Alumina, thin film substrate

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99.5% Alumina, thin film substrate
Categories:	Ceramic; Oxide; Aluminum Oxide
Material Notes:
Key Words:	Al2O3, aluminum oxide
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Physical Properties	Original Value	Comments

Density	3.90 g/cc
Water Absorption	0.00 %	24 hrs. (ASTM C373)

Mechanical Properties	Original Value	Comments
Modulus of Elasticity	370 GPa
Poissons Ratio	0.20
Shear Modulus	154 GPa	Calculated

Electrical Properties	Original Value	Comments
Electrical Resistivity	>= 1.00e+8 ohm-cm @Temperature 500 °C
	>= 1.00e+8 ohm-cm @Temperature 700 °C
	>= 1.00e+12 ohm-cm @Temperature 300 °C
	1.00e+14 ohm-cm @Temperature 25.0 °C
Dielectric Constant	9.9 @Frequency 1000 Hz	(± 2%)
	9.9 @Frequency 1e+6 Hz	(± 2%)
Dielectric Strength	670 kV/mm @Thickness 0.635 mm, Frequency 60 Hz	avg. RMS values, AC
Dissipation Factor	0.0020 @Frequency 1e+6 Hz
	0.0050 @Frequency 1000 Hz

Thermal Properties	Original Value	Comments
CTE, linear	6.70 µm/m-°C @Temperature 25.0 °C	ASTM C372
	7.50 µm/m-°C @Temperature 300 °C
	8.00 µm/m-°C @Temperature 600 °C
	8.30 µm/m-°C @Temperature 1000 °C
Thermal Conductivity	34.7 W/m-K
	12.6 W/m-K @Temperature 400 °C
	25.5 W/m-K @Temperature 100 °C

Component Elements Properties	Original Value	Comments
Al2O3	99.5 %

References for this datasheet.

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