Morgan Advanced Ceramics Deranox™ 995 Alumina

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Morgan Advanced Ceramics Deranox™ 995 Alumina
Categories:	Ceramic; Oxide; Aluminum Oxide
Material Notes:	Alumina ceramic of 99.5% Al2O3 content. This material is extensively used for applications that require exceptional electrical resistance combined with resistance to chemical attack. Prime features: Ultra-low outgassing Low neutron absorption Resistant to fluorine and chlorine attack Very high volume resistivity Good thermal conductivity Non-porous and vacuum tight. Typical applications: Gas, solid-state and waveguide lasers Components for a wide range of industrial, medical and defense equipment. Information provided by Morgan Advanced Ceramics.
Key Words:	Al2O3; Aluminum Oxide
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Physical Properties	Original Value	Comments

Density	3.89 g/cc
Porosity	0.00 %	Fully Dense
Particle Size	10 µm	Grain Size

Mechanical Properties	Original Value	Comments
Hardness, Rockwell 45 N	82
Vickers Microhardness	14.3	GPa @ Hv 0.5 kg
Modulus of Elasticity	370 GPa
Flexural Strength	330 MPa	3 point; ASTM C1161
Compressive Strength	2000 MPa

Electrical Properties	Original Value	Comments
Electrical Resistivity	>= 1.00e+8 ohm-cm @Temperature 600 °C
	>= 1.00e+13 ohm-cm @Temperature 300 °C
Dielectric Constant	9.7 @Frequency 1e+6 Hz
	10 @Frequency 9.40e+9 Hz
Dielectric Strength	20.0 kV/mm @Thickness 2.00 - 3.00 mm
Dissipation Factor	0.00050 @Frequency 1e+6 Hz
	0.00050 @Frequency 9.40e+9 Hz

Thermal Properties	Original Value	Comments
CTE, linear	8.50 µm/m-°C @Temperature 20.0 - 800 °C
Specific Heat Capacity	0.880 J/g-°C
Thermal Conductivity	25.6 W/m-K
	12.5 W/m-K @Temperature 400 °C
Maximum Service Temperature, Air	1500 °C	No Load

Component Elements Properties	Original Value	Comments
Al2O3	99.5 %

Descriptive Properties
Color	White
Thermal Downshock	160 σC

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CMORG02 / 1645

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