MatWeb - Material Property Data Advertise with MatWeb!     Register Now
Data sheets for over 180,000 metals, plastics, ceramics, and composites.
MatWeb - Material Property Data HOME  •   SEARCH  •   TOOLS  •   SUPPLIERS  •   FOLDERS  •   ABOUT US  •   FAQ  •   LOG IN    
Recently Viewed Materials (most recent at top)  

Login to see your most recently viewed materials here.

Or if you don't have an account with us yet, then click here to register.

  Searches:   Advanced  | Category  | Property  | Metals  | Trade Name  | Manufacturer  | Recently Viewed Materials
  

Rulon Bearings

CeramTec CeramCool® Rubalit® 708 Alumina, 96%
Categories: Ceramic; Oxide; Aluminum Oxide

Material Notes: CeramCool® is a metallized ceramic heat-sink for high power applications demonstrated by high power LED-systems. CeramCool® material characteristics: electrical insulation, high volume resistivity, thermal cycling stability, high breakthrough voltage, no corrosion, and no water intrusion. Benefits of CeramCool®: optimized thermal management, passive cooling, absorption of thermal stress, increased lifetime of die, higher color stability, reduction TCE mismatch, thermal expansion coefficient of semiconductor materials, one system for alignment of sources, simplified system, miniaturization, weight reduction, cost reduction, and high current conductors. CeramCool® can be metallized directly with thick or thin film processes such as conventional ceramic substrates. This makes the complete surface of the heat-sink useable as a circuit carrier while providing reliable electrical insulation. CeramCool® is available from the proven ceramic material Rubalit® 708. This material has a thermal expansion coefficient that is adapted to semi-conductor materials, possesses excellent electrical characteristics and is at the same time corrosion-resistant. CeramCool® is available with or without metallizations.

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 PropertiesMetricEnglishComments
Density 3.78 g/cc0.137 lb/in³ASTM-C20
Water Absorption 0.00 %0.00 %ASTM-C373
Particle Size 3.0 - 5.0 µm3.0 - 5.0 µmMedium Grain (d50)
 
Mechanical PropertiesMetricEnglishComments
Modulus of Elasticity 340 GPa49300 ksiASTM-F417
Flexural Strength 400 MPa58000 psiBending Strength; 4-point method (40x4x3 mm³); ASTM-F417
 500 MPa72500 psiBending Strength; dual-ring method (0.63 mm substrate thickness); DIN 52292
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity  1.00e+10 ohm-cm
@Temperature 600 °C
1.00e+10 ohm-cm
@Temperature 1110 °F
ASTM-D257
 1.00e+11 ohm-cm
@Temperature 400 °C
1.00e+11 ohm-cm
@Temperature 752 °F
ASTM-D257
 1.00e+12 ohm-cm
@Temperature 200 °C
1.00e+12 ohm-cm
@Temperature 392 °F
ASTM-D257
 1.00e+13 ohm-cm
@Temperature 20.0 °C
1.00e+13 ohm-cm
@Temperature 68.0 °F
ASTM-D257
Dielectric Constant  9.8
@Frequency 1e+6 Hz
9.8
@Frequency 1e+6 Hz
 10
@Frequency 1e+9 Hz
10
@Frequency 1e+9 Hz
Dielectric Breakdown  7000 V
@Thickness 0.250 mm
7000 V
@Thickness 0.00984 in
ASTM-D149
 12600 V
@Thickness 0.630 mm
12600 V
@Thickness 0.0248 in
ASTM-D149
 15000 V
@Thickness 1.00 mm
15000 V
@Thickness 0.0394 in
ASTM-D149
Dielectric Loss Index 0.00030
@Frequency 1e+6 Hz
0.00030
@Frequency 1e+6 Hz
ASTM-D150
 
Thermal PropertiesMetricEnglishComments
CTE, linear  6.80 µm/m-°C
@Temperature 20.0 - 300 °C
3.78 µin/in-°F
@Temperature 68.0 - 572 °F
ASTM-C372
 7.30 µm/m-°C
@Temperature 20.0 - 600 °C
4.06 µin/in-°F
@Temperature 68.0 - 1110 °F
ASTM-C372
 8.00 µm/m-°C
@Temperature 20.0 - 1000 °C
4.44 µin/in-°F
@Temperature 68.0 - 1830 °F
ASTM-C372
Specific Heat Capacity 0.800 J/g-°C0.191 BTU/lb-°F
Thermal Conductivity 24.0 W/m-K
@Temperature 20.0 - 100 °C
167 BTU-in/hr-ft²-°F
@Temperature 68.0 - 212 °F
ASTM-C408
 
Component Elements PropertiesMetricEnglishComments
Al2O3 96 %96 %
 
Descriptive Properties
ColorWhite
Ra = Arithmetic Mean Roughness Value (µm)Profilometer (0.8 mm cutoff)

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.

Users viewing this material also viewed the following:
CeramTec Rubalit® 708 Alumina, 96%
CeramTec Rubalit® 708 HP Alumina, 96% (High Performance)
CeramTec Rubalit® 708S Alumina, 96%
CeramTec 614/698 Alumina, 96%
CoorsTek AD-96 Alumina (nom. 96% Al2O3)

CCERA960 / 107560

Aluminum Castings

Please read our License Agreement regarding materials data and our Privacy Policy. Questions or comments about MatWeb? Please contact us at info@matweb.com. We appreciate your input.

The contents of this web site, the MatWeb logo, and "MatWeb" are Copyright 1996-2025 by MatWeb, LLC. MatWeb is intended for personal, non-commercial use. The contents, results, and technical data from this site may not be reproduced either electronically, photographically or substantively without permission from MatWeb, LLC.