Pyrolytic carbon
Description
Various modifications of pyrolytic carbon are typically processed by Chemical Vapor Deposition (CVD) technique.
Anisotropic pyrolytic carbon (pyro-graphite) features high physical and mechanical parameters, stability against erosion and aggressive media, impermeability for liquids and gases, and a distinct anisotropy of its physical and mechanical parameters.
Pyro-carbon products include plates, tubes, crucibles, ampoules, boats, and complex-shaped parts. Pyro-carbon is also used as coatings on graphite substrates.
Applications
- Consumables for analytic systems
- Boats, evaporation cells
- Dies for non-ferrous sheet metal forming
- Heating elements for high-temperature systems
- Rings, sleeves for friction units
- Crucibles for melting high-purity metals
Parameter |
Value |
Density,g/cm³ |
1.9 – 2.2 |
Bending strength, parallel to layer, MPa |
80 - 150 |
Young modulus, parallel to layer, GPa |
29 - 45 |
Linear expansion ratio, parallel to layer, 10ˆ(-6) х Кˆ(-1) |
2 - 3 |
Coefficient of thermal expansion (CTE), parallel to layer, 10ˆ(-6) x Кˆ(-1) |
150 - 350 |
Resistivity, 10ˆ(-4) Ohm cm |
1.3 – 1.6 |