The difference between carbon felt and graphite felt.
Release time:
2025-01-20
The difference between carbon felt and graphite felt
The main differences between carbon felt and graphite felt lie in their materials, properties, applications, and processing temperatures.
Material
Carbon felt is made from carbon fibers, while graphite felt is made from graphite particles. The carbon content of carbon felt is generally around90%while the carbon content of graphite felt can reach99%or more.
Properties
Thermal and electrical conductivity: Carbon felt has good electrical conductivity and certain thermal conductivity, while graphite felt has better thermal and electrical conductivity.
High-temperature resistance: The operating temperature of carbon felt is generally around 1000 degrees Celsius,2000 while graphite felt can maintain a higher operating temperature, reaching 2800 degrees Celsius or more in an oxygen-free environment.
Other properties: Carbon felt is lightweight, has high specific strength, fast permeability, and corrosion resistance, making it suitable for chemical anti-corrosion, aviation, aerospace, and other fields. Graphite felt, on the other hand, has high purity, high-temperature resistance, corrosion resistance, and does not melt, making it suitable for insulation and heat insulation materials in single crystal silicon smelting furnaces, as well as filtration materials for high-purity chemical reagents.
Processing temperature
Carbon felt will transform into graphite felt when heated to 2000 degrees Celsius or more in an oxygen-free environment, while the processing temperature of graphite felt exceeds 2000 degrees Celsius, usually at 2800 degrees Celsius or more in an oxygen-free environment.
In summary, carbon felt and graphite felt materials have significant differences in terms of material, properties, and applications. The choice of which material to use depends on specific application requirements and environmental conditions.
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