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HOME Products Surfece Treatment Pyrolytic graphite coating PYROGRAPH™

Pyrolytic graphite coating PYROGRAPH™

Pyrolytic graphite coating PYROGRAPH™
Cross-section of PYROGRAPH™
under Polarization Microscope
PYROGRAPH™ is a product created by coating the surface of highly purified isotropic graphite with a fine layer of pyrolytic carbon by means of a proprietary Toyo Tanso Chemical Vapor Deposition (CVD) process.

Features

  • the pyrolytic carbon layer is extremely fine
  • ultrapure
  • the layer coating ensures extremely low gas permeability
  • excellent corrosion resistance against gas
  • excellent oxidation resistance at low temperatures
  • excellent heat resistance
  • prevents the parting and scattering of graphite particles, and the emission of gas and impurities from the graphite substrate

Application・Products

  • Single crystal silicon manufacturing equipment
  • Tube for atomic absorption spectroscopy
  • OLED manufacturing equipment

Properties/Test Data

Impurity Analysis Example

Impurity Analysis Example

* Measurement method: Glow Discharge Mass Spectrometry
* The figures above are measurement examples, and are not to be guaranteed.

General Physical Properties

General Physical Properties

* The temperature range for the coefficient of thermal expansion is RT to 1,000°C.
* The figures above are extracted from other publications, and are not to be guaranteed.

Gas Permeability

Gas Permeability

Source: Pg. 137 of “Introduction to Carbon Materials” from the Carbon Society of Japan

Emissivity

Emissivity