High Temperature Applications
Glassy carbon SIGRADUR® is high temperature resistant in inert gas or vacuum up to 3000°C. Unlike all other ceramic and metallic high temperature materials, glassy carbon increase in strength with a rise in temperature up to 2700 K. Glassy carbon shows at 2700 K compared to room temperature the double strength. Compared to ceramic and metallic materials, glassy carbon shows even at high temperatures no embrittlement. In comparison to the most ceramic and metallic materials glassy carbon SIGRADUR® has an extremely high resistance to thermal shock. Therefore short heating and cooling times are possible without any problems. Further advantages are the low mass, low heat absorption and low thermal expansion.
For this reasons glassy carbon SIGRADUR® is suitable for almost all high temperature applications. Typical applications are pyrometer protection tubes, charging systems and parts for high temperature furnaces.