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Master Bond adhesives

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Morgan Advanced Ceramics AL 300 ™ Mac-A976W Aluminum Oxide Ceramic
Categories: Ceramic; Oxide; Aluminum Oxide
Material Notes: A top quality alumina ceramic of 97.6% Al2O3 content, widely used for high integrity components where its exceptional electrical and thermal properties are essential to operational stability and reliability.

Prime Features:

  • Exceptionally high dielectric strength
  • Consistent dielectric constant
  • Dense, non-porous and vacuum tight
  • Readily accepts moly-manganese metallizing for high temperature brazing of assemblies
  • Electrically and dimensionally stable across a wide temperature range
  • Resists chemical attack and abrasion
  • Good thermal conductivity
Typical Applications:
  • High power tubes for klystron and x-ray equipment used in defence, medical and communications
  • Electro-optical equipment
  • Flow measurement devices
  • Pressure sensors
  • Power distribution equipment
Production Capabilities:
  • Isostatic and dry pressing of small to large complex components
  • CNC grinding and lapping to very tight tolerances
  • Prototype, batch and volume production
  • Complete documentation and traceability
  • Functional coating, such as Cr2O3, MnTiCr.0.

Information provided by Morgan Advanced Materials
Key Words: Mac-A976W
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 3.76 g/ccfired
Open Porosity 0.00 %fully dense, % nominal, apparent
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell HR45N 75
Flexural Strength 296 MPa
Compressive Strength >= 1720 MPa
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity 8.40e+10 ohm-cm
@Temperature 500 °C
 1.00e+12 ohm-cm
@Temperature 300 °C
 >= 1.00e+14 ohm-cm
@Temperature 25.0 °C
Dielectric Constant 9.0
@Frequency 1e+8 Hz,
Temperature 25.0 °C
 9.04
@Frequency 8.50e+9 Hz,
Temperature 25.0 °C
 9.32
@Frequency 8.50e+9 Hz,
Temperature 300 °C
 9.53
@Frequency 1e+7 Hz,
Temperature 25.0 °C
 9.54
@Frequency 8.50e+9 Hz,
Temperature 500 °C
 9.91
@Frequency 1e+7 Hz,
Temperature 300 °C
 10.14
@Frequency 1e+7 Hz,
Temperature 500 °C
Dielectric Strength 43.3 kV/mm
Dissipation Factor 0.000040
@Frequency 1e+7 Hz,
Temperature 25.0 °C
 0.00016
@Frequency 1e+7 Hz,
Temperature 300 °C
 0.00030
@Frequency 1e+8 Hz,
Temperature 25.0 °C
 0.00040
@Frequency 8.50e+9 Hz,
Temperature 300 °C
 0.00045
@Frequency 8.50e+9 Hz,
Temperature 25.0 °C
 0.00052
@Frequency 1e+7 Hz,
Temperature 500 °C
 0.00072
@Frequency 8.50e+9 Hz,
Temperature 500 °C
 
Thermal PropertiesOriginal ValueComments
CTE, linear 6.90 µm/m-°C
@Temperature 25.0 - 200 °C
 7.80 µm/m-°C
@Temperature 200 - 400 °C
 8.50 µm/m-°C
@Temperature 400 - 600 °C
 8.80 µm/m-°C
@Temperature 600 - 800 °C
 9.00 µm/m-°C
@Temperature 800 - 1000 °C
Thermal Conductivity 26.8 W/m-K
Maximum Service Temperature, Air 1650 °Cno load
 
Component Elements PropertiesOriginal ValueComments
Al2O3 <= 97.6 %
 
Descriptive Properties
Colorwhite

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