Graphite Coated Rigid Felt is made up of carbon fibers measuring just a few millimeters in length, emanating from viscose base fibers. These fibers are interconnected in a matrix produced by the carbonisation of phenolic resin.
The material is then vacuum-treated at temperatures above 2,400℃to ensure its temperature stability and the absence of outgassing. As a benchmark, the material contains no more than 500 ppm of impurities. Impurity levels below 20 ppm can be achieved through a halogen purification process.
technical specification
|
Material |
Viscose base fiber |
|
Bulk density |
0.15 g/cm³ |
|
Compression strength |
0.32 MPa |
|
Bending strength |
≥1.2 MPa |
|
Electrical resistivity |
85.9 mΩcm |
|
Thermal conductivity |
≤0.22 W/(m.k) |
| Ash content |
Standard ≤200 ppm |
|
Max operation temperature |
2400 ℃ |
packing and delivery
Vacuum package
Product feature
- Stable
- Low thermal conductivity
- Thermal shock resistance
- Erosion resistance
- Good wear resistance
Product application
- SiC crystal growth furnace, SiC epitaxial furnace
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