Graphite electrode is a crucial component in modern metal refining, smelting and refinement processes. It is used for the conductive medium of electric arc furnaces. Graphite possesses unique properties such as high thermal conductivity (higher than steel), excellent oxidation resistivity (lower than steel), low coefficient thermal expansion and good electrical conductivity.
High thermal conductivity is the result of a unique structure of the carbon atoms, which form a hexagonal array of parallel plates called graphenes. Each graphene is composed of three covalently linked carbon atoms. One orbital can be easily displaced to produce the free, heat-conducting electrons. The layered structures also efficiently direct heat, which makes them ideal for applications requiring precise, directional warming.
In addition to its high thermal conductivity graphite also has a good capacity for heat, which is the ability of storing large amounts energy with little temperature change. This property is very useful for applications that require high current, such a melting and refining of metals.
Carbon-based electrodes have a higher thermal conduction than copper. It is also lighter and its anisotropical thermal conductivity allows heat to be conducted more efficiently in different directions. This allows for greater flexibility when designing heat management designs. It is also highly corrosion resistant and can withstand temperatures, chemical solutions, and other materials that would melt them.
The growth of industries that rely on graphite and the development of new technologies may influence future demand for Graphite Electrode. Market growth could also be affected by the potential for new carbon-based materials and alternative smelting methods. You should monitor technological advances and industry trends to ensure that your production process runs smoothly.
The density, thermal diffusion and specific heat capability of a Graphite Electrode determine its thermal conductivity. This data is important for accurate modeling of the sample's behavior and predicting its performance. The DXF 200+ MDSC was used for characterization and comparison of a LIB-coated anode on copper current collector.
The results showed the thermal conductivity of GF could be improved by optimizing parameters such as aluminum contents, compacting pressure, and baking temperatures. The highest values for GF thermal conductivity came from samples that were baked at 600 degC over 1.5 h. This is consistent to the theory of morphological transformation into graphite quasi single crystals and an improvement in thermal conductivity.
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