PG coating Pyrolytic Graphite coating
As a coating for sealed processed graphite hardware, pyrolytic graphite (PG) forms an impermeable protective layer with mechanical, thermal and electrical properties beyond those of conventional graphite. PG is an ultrapure product with close theoretical density and high anisotropy (300 W/m-K in the AB direction and 3.5 W/m-K in the C direction). PG is chemically inert and stable at extreme temperatures (up to 3000°C).
Non-toxic and tasteless；
Ultra-high purity(99 .99%)
Good stability, High operating temperature
Good thermal conductivity, small thermal expansion coeffi-
cient, good thermal shock resistance
Good chemical stability, resistant to acids, alkalis, salts and organ-
ic solvents, and does not infiltrate or react with molten metal
Very low outgassing rate
No pores, good air tightness, easy machining
• OLED Evaporation point source crucible;
• Electron beam melting Crucible;
• Ion beam implantation component;
• Plasma etching components;
• Sputtering target;
• Rocket nozzle throat lining;
• Atomic absorption tube;
• PG heater.
| Main Parameters | Numerical | Units | Direction |
| Density | 2.15-2.22 | g/cm3 | - |
| Electrical resistivity | 2×10-4 | Ω·cm | ab |
| 0.6 | Ω·cm | c | |
| Thermal conductivity | 382 | W/m°C | ab |
| 2.8 | W/m°C | c | |
| Coefficient of thermal expansion (20°C) | 0.5 | μm/m-℃ | ab |
| Sublimation temperature | 3650 | ℃ | - |
| Tensile strength | 80 | MPa | ab |
| Bending strength | 130 | MPa | ab |
| 116 | MPa | c | |
| Compressive strength | 80 | MPa | ab |
| Yang-style modulus quan | 20 | GPa | ab |
Coating size: Max φ800mm
Coating substrate: Graphite or PBN
Coating thickness: Max 70μm
Coating purity: >99.99%
Being the top solutions of our factory, our solutions series have been tested and won us experienced authority certifications. For additional parameters and item list details, please click the button to acquire additional information.