Ripplocations, kink bands and delamination cracks in carbon cathode materials
Source abstract
Abstract
A new deformation micromechanism operating in the carbon cathode for aluminum electrolysis termed a ripplocation has been proposed in this paper. The creep deformation of semi-graphitic cathode was measured using a modified Rapoport equipment at 965 °C with cryolite ratio = 4.0. The characteristic of the defect was obtained by analyzing TEM photograph of the carbon cathode with different testing times. The results indicated that basal dislocations, bulk ripplocations, kink bands and delamination cracks appeared in succession in the first two stages of the creep deformation. Ripplocations in the carbon cathode make a layer of carbon atoms to glide relative to each other without damaging the in-plane bonds. Ripplocations could also attract each other and result in kink boundaries. The creep strain of the carbon cathode could be accommodated by kink band and delamination cracks during aluminum electrolysis. A more comprehensive understanding of their micromechanics behaviors is very important and could deeply influence our current knowledge of the deformation mechanism of the carbon cathode for aluminum electrolysis.
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Research context
OpenAlex topics: Carbon Nanotubes in Composites · Graphene research and applications · Smart Materials for Construction
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References (25)
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1. Picard D, Fafard M, Soucy G, Bilodeau J-F (2008) Room temperature long-term creep/relaxation behaviour of carbon cathode material. Mater Sci Eng A 496(1):36610.1016/j.msea.2008.06.029 ↗
2. Zolochevsky A, Hop J, Servant G, Foosnaes T, Øye H (2003) Rapoport-Samoilenko test for cathode carbon materials: I Experimental results and constitutive modelling. Carbon 41(3):49710.1016/S0008-6223(02)00346-9 ↗
3. Brisson P-Y, Darmstadt H, Fafard M, Adnot A, Servant G, Soucy G (2006) X-ray photoelectron spectroscopy study of sodium reactions in carbon cathode blocks of aluminium oxide reduction cells. Carbon 44(8):143810.1016/j.carbon.2005.11.030 ↗
4. Kushima A, Qian X, Zhao P, Zhang S, Li J (2015) Ripplocations in van der Waals layers. Nano Lett 15(2):130210.1021/nl5045082 ↗
5. Hinks JA, Haigh SJ, Greaves G, Sweeney F, Pan CT, Young RJ, Donnelly SE (2014) Dynamic microstructural evolution of graphite under displacing irradiation. Carbon 68(2):27310.1016/j.carbon.2013.11.002 ↗
6. Murugaiah A, Barsoum MW, Kalidindi SR, Zhen T (2004) Spherical nanoindentations and kink bands in Ti3SiC2. J Mater Res 19(4):113910.1557/JMR.2004.0148 ↗
7. Barsoum MW, Zhen T, Zhou A, Basu S, Kalidindi SR (2005) Microscale modeling of kinking nonlinear elastic solids. Phys Rev B 71(13):13410110.1103/PhysRevB.71.134101 ↗
8. Barsoum MW, Murugaiah A, Kalidindi SR, Zhen T, Gogotsi Y (2004) Kink bands, nonlinear elasticity and nanoindentations in graphite. Carbon 42(8–9):143510.1016/j.carbon.2003.12.090 ↗
9. Zolochevsky A, Hop J, Foosnaes T, Øye H (2005) Rapoport-Samoilenko test for cathode carbon materials—II. Swelling with external pressure and effect of creep. Carbon 43(6):122210.1016/j.carbon.2004.12.015 ↗
10. Fang Z, Wu X-L, Yu J, Li L-B, Zhu J (2014) Penetrative and migratory behavior of alkali metal in different binder based TiB2-C composite cathodes. Chin J Nonferrous Metals 4:41
11. Chauke L, Garbers-Craig AM (2013) Reactivity between carbon cathode materials and electrolyte based on industrial and laboratory data. Carbon 58(1):4010.1016/j.carbon.2013.02.023 ↗
12. Hjertenæs E, Nguyen AQ, Koch H (2016) A Reactive ReaxFF Force field for sodium intrusion in graphitic cathodes. Phys Chem Chem Phys 18(46):31431–3144010.1039/C6CP06774C ↗
13. Kelly BT (1981) Physics of graphite. Applied Science Publishers Ltd., London
14. Griggs J, Lang AC, Gruber J, Tucker GJ, Taheri ML, Barsoum MW (2017) Spherical nanoindentation, modeling and transmission electron microscopy evidence for ripplocations in Ti3 SiC2. Acta Mater 131:14110.1016/j.actamat.2017.03.055 ↗
15. Gruber J, Lang AC, Griggs J, Taheri ML, Tucker GJ, Barsoum MW (2016) Evidence for bulk ripplocations in layered solids. Sci Rep 6:3345110.1038/srep33451 ↗
16. Hinks JA, Greaves G, Haigh SJ, Pan CT, Donnelly SE (2014) Kink band formation in graphite under ion irradiation at 100 and 298 K. Mater Trans 55(3):44710.2320/matertrans.MD201317 ↗
17. Wilhelmsson O, Eklund P, Giuliani F, Högberg H, Hultman L, Jansson U (2007) Intrusion-type deformation in epitaxial Ti3SiC2/TiC0.67 nanolaminates. Appl Phys Lett 91(12):20110.1063/1.2789710 ↗
18. Brisson P-Y, Soucy G, Fafard M, Dionne M (2005) The effect of sodium on the carbon lining of the aluminum electrolysis cell—a review. Can Metall Q 44(2):26510.1179/cmq.2005.44.2.265 ↗
19. Fang Z, Gao N, Li X, Liu Q, Liu M (2016) Electrochemical behavior of K and Na alkali metals in molten salt aluminum electrolysis process. Nanosci Nanotechnol Lett 8(6):48410.1166/nnl.2016.2162 ↗
20. Molina-Aldareguia JM, Emmerlich J, Palmquist JP, Jansson U, Hultman L (2009) Kink formation around indents in laminated Ti3SiC2 thin films studied in the nanoscale. Scripta Mater 49(2):15510.1016/S1359-6462(03)00214-8 ↗
21. Barsoum MW, Farber L, El-Raghy T (1999) Dislocations, kink bands, and room-temperature plasticity of Ti3SiC2. Metall Mater Trans A 30(7):172710.1007/s11661-999-0172-z ↗
22. Mototsugu S, Nakano Y, Shimizu S (2010) Elastoplastic indentation on heat-treated carbons. J Am Ceram Soc 85(6):1522
23. Nakamura Y, Oohashi K, Toyoshima T, Satish-Kumar M, Akai J (2015) Strain-induced amorphization of graphite in fault zones of the Hidaka metamorphic belt, Hokkaido, Japan. J Struct Geol 72:14210.1016/j.jsg.2014.10.012 ↗
24. Zheng Y, Zeng W, Wang Y, Zhang S (2017) Kink deformation in a beta titanium alloy at high strain rate. Mater Sci Eng A 702:218–22410.1016/j.msea.2017.07.015 ↗
25. Zhou AG, Basu S, Barsoum MW (2008) kinking nonlinear elasticity, damping and microyielding of hexagonal close-packed metals. Acta Mater 56(1):6010.1016/j.actamat.2007.08.050 ↗