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Elmet Technologies

Morgan Advanced Ceramics Hilox ™ 961 Mac-A960S Aluminum Oxide Ceramic
Categories: Ceramic; Oxide; Aluminum Oxide

Material Notes: A high quality alumina ceramic of 96% Al2O3 content. Excellent mechanical characteristics make this an ideal material for components where resistance to dynamic wear and abrasive action are prime factors.

Prime Features:

  • Exceptionally hard-wearing
  • Excellent abrasion resistance
  • High compressive and flexural strengths
  • Dense, non-porous and vacuum tight
  • Excellent dimensional stability across very wide temperature range
  • Resists chemical attack
Typical Applications:
  • Valve plates for liquid and gas control systems: industrial and domestic duties
  • Pneumatic slider valves (>20 million operating cycles can be achieved)
  • Wear resistant components for rotary and reciprocating pumps: shafts, bearings, thrust washers, plungers, counterface seats, etc
Production Capabilities:
  • Complex components to close tolerances
  • Exacting flatness and surface finishes for low friction valve operation and accurate flow control.
  • Flatness tolerance below three helium bnads (0.0009 mm)
  • Flat surface polished finish to 0.08 micron Ra
  • Cylindrical surface finish to 0.2 micron Ra
  • Prototype, batch and volume prodcution

Information provided by Morgan Advanced Materials

Key Words: Mac-A960S
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 3.88 g/cc0.140 lb/in³fired
Open Porosity 0.00 %0.00 %fully dense, % nominal, apparent
Grain Size 2.8 µm2.8 µm
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell HR45N 8484
Modulus of Elasticity 354 GPa
@Temperature 20.0 °C
51300 ksi
@Temperature 68.0 °F
Young's
Flexural Strength 376 MPa
@Temperature 20.0 °C
54500 psi
@Temperature 68.0 °F
3-point
Compressive Strength 2100 MPa305000 psi
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity  >= 1.00e+6 ohm-cm
@Temperature 600 °C
>= 1.00e+6 ohm-cm
@Temperature 1110 °F
 >= 1.00e+8 ohm-cm
@Temperature 300 °C
>= 1.00e+8 ohm-cm
@Temperature 572 °F
 >= 1.00e+14 ohm-cm
@Temperature 20.0 °C
>= 1.00e+14 ohm-cm
@Temperature 68.0 °F
Dielectric Constant 10
@Frequency 1e+6 Hz
10
@Frequency 1e+6 Hz
Dielectric Strength 28.0 kV/mm711 kV/in
Dissipation Factor 0.0010
@Frequency 1e+6 Hz
0.0010
@Frequency 1e+6 Hz
 
Thermal PropertiesMetricEnglishComments
CTE, linear 8.20 µm/m-°C
@Temperature 20.0 - 1000 °C
4.56 µin/in-°F
@Temperature 68.0 - 1830 °F
Specific Heat Capacity 0.880 J/g-°C0.210 BTU/lb-°F
Thermal Conductivity 21.0 W/m-K
@Temperature 20.0 °C
146 BTU-in/hr-ft²-°F
@Temperature 68.0 °F
Maximum Service Temperature, Air 1500 °C2730 °Fno load
 
Component Elements PropertiesMetricEnglishComments
Al2O3 <= 96 %<= 96 %
 
Descriptive Properties
Colorbrown
Thermal Downshock160 sC

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