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Elmet Technologies

Morgan Advanced Ceramics Deranox™ 995 Alumina Ceramic Aluminum Oxide Ceramic
Categories: Ceramic; Oxide; Aluminum Oxide
Material Notes: Alumina ceramic of 99.5% Al2O3 content. This material is extensively used for applications that require exceptional electrical resistance combined with resistance to chemical attack.

Prime Features:

  • Ultra-low outgassing
  • Low neutron absorption
  • Resistant to fluorine and chlorine attack
  • Very high volume resistivity
  • Good thermal conductivity
  • Non-porous and vacuum tight
Typical Applications:
  • Gas, solid-state and waveguide lasers
  • Components for a wide range of industrial, medical and defence equipment.
Production Capabilities:
  • Isostatic pressing of components up to 1100mm long
  • Volume production to close dimensional tolerances
  • Surface polishing
  • Glass or thermal diffusion bonding for high quality hermetic sealing
  • Prototype, batch and volume production

Information provided by Morgan Advanced Materials
Key Words: Alumina Ceramic
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 3.89 g/cc0.141 lb/in³fired
Open Porosity 0.00 %0.00 %fully dense, % nominal, apparent
Grain Size 10 µm10 µm
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell HR45N 8282
Hardness, Vickers 14.3
@Load 0.500 kg		14.3
@Load 1.10 lb		[GPa]
Modulus of Elasticity 370 GPa
@Temperature 20.0 °C		53700 ksi
@Temperature 68.0 °F
Flexural Strength 330 MPa47900 psi3-point; ASTM C1161
Compressive Strength 2000 MPa290000 psi
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity  1.08e+8 ohm-cm
@Temperature 600 °C		1.08e+8 ohm-cm
@Temperature 1110 °F		ASTM D257
 6.90e+11 ohm-cm
@Temperature 300 °C		6.90e+11 ohm-cm
@Temperature 572 °F		ASTM D257
 3.00e+15 ohm-cm
@Temperature 20.0 °C		3.00e+15 ohm-cm
@Temperature 68.0 °F		ASTM D257
Dielectric Constant  9.88
@Frequency 9.40e+9 Hz		9.88
@Frequency 9.40e+9 Hz
 9.97
@Frequency 1e+6 Hz		9.97
@Frequency 1e+6 Hz
Dielectric Strength 30.5 kV/mm775 kV/in
Dissipation Factor  0.000689
@Frequency 1e+9 Hz		0.000689
@Frequency 1e+9 Hz		tan d; ASTM D2520
 0.000912
@Frequency 1e+6 Hz		0.000912
@Frequency 1e+6 Hz		tan d; ASTM D150
 0.00107
@Frequency 9.40e+9 Hz		0.00107
@Frequency 9.40e+9 Hz		tan d; ASTM D2520
 
Thermal PropertiesMetricEnglishComments
CTE, linear 7.80 µm/m-°C
@Temperature 20.0 - 800 °C		4.33 µin/in-°F
@Temperature 68.0 - 1470 °F
Specific Heat Capacity 0.880 J/g-°C0.210 BTU/lb-°F
Thermal Conductivity  4.90 W/m-K
@Temperature 1500 °C		34.0 BTU-in/hr-ft²-°F
@Temperature 2730 °F		ASTM E228
 5.90 W/m-K
@Temperature 1200 °C		40.9 BTU-in/hr-ft²-°F
@Temperature 2190 °F		ASTM E228
 9.20 W/m-K
@Temperature 600 °C		63.8 BTU-in/hr-ft²-°F
@Temperature 1110 °F		ASTM E228
 13.7 W/m-K
@Temperature 300 °C		95.1 BTU-in/hr-ft²-°F
@Temperature 572 °F		ASTM E228
 30.8 W/m-K
@Temperature 20.0 °C		214 BTU-in/hr-ft²-°F
@Temperature 68.0 °F		ASTM E228
Maximum Service Temperature, Air 1500 °C2730 °Fno load
 
Component Elements PropertiesMetricEnglishComments
Al2O3 99.5 %99.5 %
 
Descriptive Properties
Colorwhite
Thermal Downshock160 sC

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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