The creep strainCreep strain of the semi-graphitic commercial cathodeCathode material used for aluminum productionAluminum production was measured on solid cylinder sample. Experimental results were obtained using a modified Rapoport equipment for the cathodeCathode material during aluminum electrolysisAluminum electrolysis with a cryoliteCryolite mole ratio (NaF/AlF3) of 2.5 and at a temperature of 950 °C under different stress levels. The coincident method proposed previously was applied to model the creep strainCreep strain of carbonCarbon-based cathodeCathode material. The test data were processed, and the creep characteristics of the cathodeCathode material were determined based on Graham creep equation. A relationship between creep coefficients and stress has been developed. Then, the creep characteristics of the cathodeCathode material were obtained by finite element numerical simulations. The model results were in accordance with the experimental ones. This work will contribute to controlling the quality of the carbon cathodeCarbon cathode and improving the cell designCell design.
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- High Temperature Creep Behaviour of Carbon-Based Cathode Material for Aluminum Electrolysis
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