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Properties & Characteristics | Thermal Conductivity | | 135 W/m-K | 45 W/m-K | | 78 BTU·ft/ft2·hr·°F | 26 BTU·ft/ft2·hr·°F | | |  | | | | Electrical Resistivity | 300 to 1,000 micro ohm inch | | Oxidation Resistance | >400°C in oxygen atmosphere | | Heat Capacity | 0.7 J/g-K | | | 0.17 BTU/lb·°F | | | | | CTE - See Charts below | | Samples were measured on a Netzsch Model 402C Dilatometer. Up-heat rate was 10°K/min. in argon atmosphere. The figures show that both POCO Thermal Management Materials expand differently in the growth (z-axis) compared to the plane of the billet (xy plane). The charts show Expansivity data, which gives an accurate representation of the material expansion behavior over temperature range. The table of CTE values is taken as the slope of the expansivity curves between the temperature of interest and the reference temperature (30°C). |  | | | | Out of Plane | 435 psi | | | 3.0 Mpa at 0.55 g/cc (34 lb/ft3) | | Bulk | <100 ppm impurities | | Purified | <9 ppm impurities | | Pore Diameter (average) | 0.17 BTU/lb·°F | | | 0.0138 inches | | Open Porosity | 96% | | Total Porosity | 75% | | Density | 0.55 g / cc | | | 34 lb / ft3 | | | | | New Properties Data | | 0.62 | | Total Mass Loss (TML) | | | based on ASTM E-595 | 0.031% | | Volatile Content matter (VCM) | | | based on ASTM E-595 | 0.017% | | (Data from Space Systems Loral) | | | Foam samples available for purchase at pocostore.com
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Additional Information | | Entegris Entegris welcomes POCO to the family. | | How to Buy POCO products are available through a variety of outlets. | | Quality Poco Graphite is committed to providing the highest quality graphite materials to its customers. | | Literature Download information about specific POCO products or Material Safety Data Sheets (MSDS). | | Contacts Get address, phone, fax and email information for POCO and its Distributors. | | Careers Note that you will be redirected to our parent company website, entegris.com, to search available positions. | | Training EDM Training Classes Free to the Industry | | EDM Blog Keep up to date with what's new at POCO and in the industry. |
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