Mechanical Properties of Carbon Cathodes during Aluminium Electrolysis

Abstract:

Based on the service ambient with aluminium electrolysis condition, the evolution of compressive strength, elastic modulus and stress-strain curve of carbon cathode samples under various conditions are investigated by experimental simulation method; the deterioration mechanism of the mechanical of carbon cathode is also studied. Results show that different carbon cathode materials and ambient conditions have great influence on strength and elastic modulus of carbon cthode. The mechanical properties such as compressive strength and elastic modulus of carbon catodes can be degraded by the erosion of sodium and molten salt during aluminium electrolysis, that has been confirmation by the SEM and XRD analysis.

• Periodical: Advanced Materials Research (Volumes 399-401)
• Pages: 2155-2159
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.399-401.2155
• Online since: November 2011
• Authors: Qing Sheng Liu, Hui Fang
• Keywords: Aluminium Electrolysis, Carbon Cathodes, Degradation, Mechanical Property, Stress-Strain Curve

References

[1] M. Sorlie, H.A. Oye: Cathodes in aluminium electrolysi( Aluminium-Veriag, Dusseldorf 1994).

[2] Jilai Xue, Qingsheng Liu: Light Metals (2007), p.1063

[3] A. Zolochevsky, J. G. Hop and G. Servant. Carbon, Vol. 41 (2002), p.497

[4] Guillaume D'Amours, Mario Fafard: Light Metals (2003), p.633

[5] A. Zolochevsky, J. G. Hop and G. Servant: Light Metals (2003), p.595

[6] Yang Sun, Qianpu Wang: Light Metals (2003), p.603

[7] P.-Y. Brisson, G. Soucy and M. Fafard: Light Metals (2005), p.727

[8] Jilai Xue, Qingsheng Liu: Light Metals (2006), p.651

[9] HAN Hong-mei, ZHANG Xiu-lian: NEW CARBON MATERIAIS. Vol.18 (2003), p.20

[10] M Dionne, G Lesperance and A Mirtchi: Light Metals(1999), p.389

[11] N. Akuzawa, R. Nakajima: Light Metals (2003), p.611

[12] NOUMOWE A N, SIDDIQUE R: Con-struction and Building Materials. Vol. 23(2009), p.1855