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Elmet Technologies

Morgan Advanced Ceramics Deranox™ 975 97-99% Alumina
Categories: Ceramic; Oxide; Aluminum Oxide
Material Notes: Excellent mechanical, thermal, electrical, and chemical properties. Highly versatile grades that can 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 3.74 - 3.89 g/cc0.135 - 0.141 lb/in³Fired
Porosity 0.00 %0.00 %Apparent; fully dense
Particle Size 4.0 - 14 µm4.0 - 14 µmGrain size
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell 45 N 75 - 8575 - 85
Vickers Microhardness 12800 - 1700012800 - 17000MPa, at Hv 0.5kg
Modulus of Elasticity 330 - 340 GPa
@Temperature 20.0 °C		47900 - 49300 ksi
@Temperature 68.0 °F
Flexural Strength 296 - 350 MPa
@Temperature 20.0 °C		42900 - 50800 psi
@Temperature 68.0 °F		3-point
Compressive Strength 1720 - 2500 MPa249000 - 363000 psi
Fracture Toughness 3.50 - 3.60 MPa-m½3.19 - 3.28 ksi-in½
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity  1.00e+8 - 2.30e+10 ohm-cm
@Temperature 600 °C		1.00e+8 - 2.30e+10 ohm-cm
@Temperature 1110 °F
 1.00e+14 - 1.00e+16 ohm-cm
@Temperature 20.0 °C		1.00e+14 - 1.00e+16 ohm-cm
@Temperature 68.0 °F
Dielectric Constant  9.0
@Frequency 1e+9 Hz		9.0
@Frequency 1e+9 Hz
 9.1 - 9.5
@Frequency 9.40e+9 Hz		9.1 - 9.5
@Frequency 9.40e+9 Hz
 9.2 - 9.8
@Frequency 1e+6 Hz		9.2 - 9.8
@Frequency 1e+6 Hz
Dielectric Strength 10.0 - 43.3 kV/mm
@Temperature 20.0 °C		254 - 1100 kV/in
@Temperature 68.0 °F		dc
Dissipation Factor 0.00030
@Frequency 1e+9 Hz		0.00030
@Frequency 1e+9 Hz
Dielectric Loss Index  0.00019 - 0.00041
@Frequency 1e+6 Hz		0.00019 - 0.00041
@Frequency 1e+6 Hz
 0.00038
@Frequency 1e+7 Hz		0.00038
@Frequency 1e+7 Hz		K*tan delta
 0.00043 - 0.00067
@Frequency 9.40e+9 Hz		0.00043 - 0.00067
@Frequency 9.40e+9 Hz
 0.0027
@Frequency 8.50e+9 Hz		0.0027
@Frequency 8.50e+9 Hz		K*tan delta
 0.00407
@Frequency 8.50e+9 Hz		0.00407
@Frequency 8.50e+9 Hz		K*tan delta
 
Thermal PropertiesMetricEnglishComments
CTE, linear  6.90 - 8.10 µm/m-°C
@Temperature 20.0 °C		3.83 - 4.50 µin/in-°F
@Temperature 68.0 °F
 8.00 - 8.80 µm/m-°C
@Temperature 800 °C		4.44 - 4.89 µin/in-°F
@Temperature 1470 °F
Specific Heat Capacity 0.880 J/g-°C0.210 BTU/lb-°F
Thermal Conductivity 24.0 - 26.8 W/m-K
@Temperature 20.0 °C		167 - 186 BTU-in/hr-ft²-°F
@Temperature 68.0 °F
Maximum Service Temperature, Air 1550 - 1650 °C2820 - 3000 °F
 
Component Elements PropertiesMetricEnglishComments
Al2O3 97 - 99 %97 - 99 %
 
Descriptive Properties
Te Value1000°C
Thermal Downshock150-200Change in °C

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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CMORG18 / 90396




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