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Elmet Technologies

Morgan Advanced Ceramics Deranox™ 995 >99% Alumina
Categories: Ceramic; Oxide; Aluminum Oxide
Material Notes: Exceptional mechanical, thermal, electrical, and chemical properties. High purity grades that can also be used for metallized applications.
Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 3.75 - 3.95 g/cc0.135 - 0.143 lb/in³Fired
Porosity 0.00 %0.00 %Apparent, fully dense grades
Particle Size 1.0 - 12 µm1.0 - 12 µmGrain size
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell 45 N 81 - 8681 - 86
Vickers Microhardness 14300 - 1850014300 - 18500MPa, at Hv 0.5kg
Modulus of Elasticity 370 - 400 GPa
@Temperature 20.0 °C		53700 - 58000 ksi
@Temperature 68.0 °F
Flexural Strength 310 - 500 MPa
@Temperature 20.0 °C		45000 - 72500 psi
@Temperature 68.0 °F		3-point
Compressive Strength 2000 - 2500 MPa290000 - 363000 psi
Fracture Toughness 4.00 MPa-m½3.64 ksi-in½
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity  1.00e+7 - 6.00e+8 ohm-cm
@Temperature 600 °C		1.00e+7 - 6.00e+8 ohm-cm
@Temperature 1110 °F
 1.00e+14 - 1.00e+17 ohm-cm
@Temperature 20.0 °C		1.00e+14 - 1.00e+17 ohm-cm
@Temperature 68.0 °F
Dielectric Constant  9.3
@Frequency 1e+9 Hz		9.3
@Frequency 1e+9 Hz
 9.7 - 10
@Frequency 9.40e+9 Hz		9.7 - 10
@Frequency 9.40e+9 Hz
 9.7 - 10.1
@Frequency 1e+6 Hz		9.7 - 10.1
@Frequency 1e+6 Hz
Dielectric Strength 20.0 - 31.5 kV/mm
@Thickness 2.00 - 3.00 mm,
Temperature 20.0 °C		508 - 800 kV/in
@Thickness 0.0787 - 0.118 in,
Temperature 68.0 °F		DC
Dissipation Factor 0.00014
@Frequency 1e+9 Hz		0.00014
@Frequency 1e+9 Hz
Dielectric Loss Index  0.00029
@Frequency 1e+7 Hz		0.00029
@Frequency 1e+7 Hz		K*tan delta
 0.00050 - 0.00080
@Frequency 1e+6 Hz		0.00050 - 0.00080
@Frequency 1e+6 Hz
 0.00050 - 0.0010
@Frequency 9.40e+9 Hz		0.00050 - 0.0010
@Frequency 9.40e+9 Hz
 0.00084
@Frequency 8.50e+9 Hz		0.00084
@Frequency 8.50e+9 Hz		K*tan delta
 0.0013
@Frequency 1e+9 Hz		0.0013
@Frequency 1e+9 Hz		K*tan delta
 
Thermal PropertiesMetricEnglishComments
CTE, linear  6.90 - 8.90 µm/m-°C
@Temperature 20.0 °C		3.83 - 4.94 µin/in-°F
@Temperature 68.0 °F
 8.50 - 9.00 µm/m-°C
@Temperature 800 °C		4.72 - 5.00 µin/in-°F
@Temperature 1470 °F
Specific Heat Capacity 0.880 J/g-°C0.210 BTU/lb-°F
Thermal Conductivity  12.5 W/m-K
@Temperature 400 °C		86.8 BTU-in/hr-ft²-°F
@Temperature 752 °F
 25.6 - 30.0 W/m-K
@Temperature 20.0 °C		178 - 208 BTU-in/hr-ft²-°F
@Temperature 68.0 °F
Maximum Service Temperature, Air 1500 - 1725 °C2730 - 3137 °F
 
Component Elements PropertiesMetricEnglishComments
Al2O3 99.5 %99.5 %
 
Descriptive Properties
Te Value975°C
Thermal Downshock160-210Change in °C

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