Cross-section of PYROGRAPH™ under Polarization Microscope
PYROGRAPH™ is a high purity graphite product on which we deposit pyrolytic carbon using an original CVD process of our own. It has the effect of reducing gas permeation and preventing reactions, for which it is often used for analytical equipment parts, high temperature reactor parts and all kinds of tools.
Item | Unit | Parallel to Coating Surface | Perpendicular to Coating Surfaces |
Bulk Density | Mg/m3 | 2.2 | 2.2 |
Hardness | HSD | 100 | - |
Electrical Resistivity | μΩ・m | 2.00~4.00 | 2~5×103 |
Coefficient of Thermal Expansion | 10-6/K | 1.7 | 28 |
Tensile Strength | MPa | 98~147 | Extremely weak |
Young's Modulus | GPa | 29~39 | - |
Thermal Conductivity | W/(m・K) | 170~420 | 2~4 |
*The temperature range for the coefficient of thermal expansion is RT to 1000℃.
*The figures above are extracted from other publications, and are not to be guaranteed.
The column-shaped structure of the pyrolytic carbon layer means that the structure is extremely fine.
Element | Content |
B | < 0.01 |
Na | 0.03 |
Al | 0.02 |
Cr | < 0.1 |
Fe | < 0.01 |
Ni | < 0.01 |
*Measurement method: Glow Discharge Mass Spectrometry
*The figures above are extracted from other publications, and are not to be guaranteed.