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Morgan Advanced Ceramics Alsint 99.7 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.
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Physical PropertiesOriginal ValueComments
Density 3.75 - 3.95 g/ccFired
Porosity 0.00 %Apparent, fully dense grades
Particle Size 1.0 - 12 µmGrain size
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell 45 N 81 - 86
Vickers Microhardness 14300 - 18500MPa, at Hv 0.5kg
Modulus of Elasticity 370 - 400 GPa
@Temperature 20.0 °C
Flexural Strength 310 - 500 MPa
@Temperature 20.0 °C		3-point
Compressive Strength 2000 - 2500 MPa
Fracture Toughness 4.00 MPa-m½
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity 1.00e+7 - 6.00e+8 ohm-cm
@Temperature 600 °C
 1.00e+14 - 1.00e+17 ohm-cm
@Temperature 20.0 °C
Dielectric Constant 9.3
@Frequency 1e+9 Hz
 9.7 - 10
@Frequency 9.40e+9 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		DC
Dissipation Factor 0.00014
@Frequency 1e+9 Hz
Dielectric Loss Index 0.00029
@Frequency 1e+7 Hz		K*tan delta
 0.00050 - 0.00080
@Frequency 1e+6 Hz
 0.00050 - 0.0010
@Frequency 9.40e+9 Hz
 0.00084
@Frequency 8.50e+9 Hz		K*tan delta
 0.0013
@Frequency 1e+9 Hz		K*tan delta
 
Thermal PropertiesOriginal ValueComments
CTE, linear 6.90 - 8.90 µm/m-°C
@Temperature 20.0 °C
 8.50 - 9.00 µm/m-°C
@Temperature 800 °C
Specific Heat Capacity 0.880 J/g-°C
Thermal Conductivity 12.5 W/m-K
@Temperature 400 °C
 25.6 - 30.0 W/m-K
@Temperature 20.0 °C
Maximum Service Temperature, Air 1500 - 1725 °C
 
Component Elements PropertiesOriginal ValueComments
Al2O3 99.7 %
 
Descriptive Properties
Te Value975°C
Thermal Downshock160-210Change 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 go back to viewing the property data in MatWeb's normal format.

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CMORG21 / 90399




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