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Rulon Bearings

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Morgan Advanced Ceramics Deranox™ 970 Alumina
Categories: Ceramic; Oxide; Aluminum Oxide

Material Notes: High-quality alumina ceramic of 97.0% Al2O3 content. This material is an excellent electrical insulator that can be metallized to facilitate high-temperature brazing of assemblies.

Prime features

  • Readily accepts metallizing with moly-manganese
  • Very high volume resistivity
  • Low loss, constant high dielectric
  • High density, non-porous and vacuum tight
  • Resists abrasive wear and chemical attack.
Typical applications:
Metallized ceramic components used in high-integrity applications, including:
  • High-vacuum systems
  • Laser equipment (gas, solid-state and waveguide)
  • X-ray tubes and electron microscopes
  • Microwave windows
  • Insulators in medical and scientific equipment.

Information provided by Morgan Advanced Ceramics.

Key Words: Al2O3; Aluminum Oxide
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 PropertiesOriginal ValueComments
Density 3.74 g/cc
Porosity 0.00 %Fully Dense
Particle Size 14 µmGrain Size
 
Mechanical PropertiesOriginal ValueComments
Vickers Microhardness 12.8GPa @ Hv 0.5 kg
Modulus of Elasticity 330 GPa
Flexural Strength 280 MPa3 point
Compressive Strength 2000 MPa
Fracture Toughness 3.50 MPa-m½
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity >= 1.00e+8 ohm-cm
@Temperature 600 °C
 >= 1.00e+12 ohm-cm
@Temperature 300 °C
Dielectric Constant 9.1
@Frequency 9.40e+9 Hz
 9.2
@Frequency 1e+6 Hz
Dielectric Strength 10.0 kV/mm
Dissipation Factor 0.00041
@Frequency 1e+6 Hz
 0.00067
@Frequency 9.40e+9 Hz
 
Thermal PropertiesOriginal ValueComments
CTE, linear 8.10 µm/m-°C
@Temperature 0.000 - 800 °C
Specific Heat Capacity 0.880 J/g-°C
Thermal Conductivity 24.0 W/m-K
Maximum Service Temperature, Air 1550 °CNo Load
 
Component Elements PropertiesOriginal ValueComments
Al2O3 97 %
 
Descriptive Properties
ColorWhite
Thermal Downshock150 σC

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CMORG00 / 1643

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