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Rulon Bearings

Poco Graphite POCOFoam® Graphite Foam  (discontinued **)
Categories: Carbon; Graphite

Material Notes: POCO HTC and POCOFoam are unique, lightweight graphite materials with exceptionally high thermal conductivity that provide an efficient energy transfer rate. These characteristics allow for design flexibility that may radically change future shapes, sizes and locations of some very familiar thermal management systems. POCO HTC is made from a unique forming process that creates a thicker structure that is denser (lower total porosity) and has almost three times the compressive strength of POCOFoam. POCOFoam is still the material of choice for lightweight applications that are encapsulated or where there is no vibration.

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Physical PropertiesMetricEnglishComments
Density 0.550 g/cc0.0199 lb/in³
Volatiles 0.017 %0.017 %ASTM E595
Open Porosity 96 %96 %
Porosity 75 %75 %
Pore Size 351 microns13.8 mil
Outgassing - Total Mass Loss 0.031 %0.031 %ASTM E595
 
Mechanical PropertiesMetricEnglishComments
Compressive Strength 3.00 MPa435 psiAt 0.55 g/cc (34lb/ft³)
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.000762 - 0.00254 ohm-cm0.000762 - 0.00254 ohm-cm
 
Thermal PropertiesMetricEnglishComments
Specific Heat Capacity 0.711 J/g-°C0.170 BTU/lb-°F
Thermal Conductivity 45.0 W/m-K312 BTU-in/hr-ft²-°FIn Plane
 135 W/m-K937 BTU-in/hr-ft²-°FOut of Plane
Flash Point >= 400 °C>= 752 °F
 
Optical PropertiesMetricEnglishComments
Emissivity (0-1) 0.620.62
 
Descriptive Properties
Total Impurity Level (ppm), Max100Bulk
 9Purified

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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