Funct. Mater. 2018; 25 (4): 788-794.
Production of submicron Al2O3 powders by electrochemical dissolution of aluminum in the presence of nitric acid
1Devyatykh Institute of Chemistry of High_Purity Substances, Russian Academy of Sciences, 49 Tropinin Str., 603950 Nizhny Novgorod, Russia
2Lobachevsky State University of Nizhny Novgorod, Research and Development Institute of Physics and Technology, 23 Gagarin Ave., 603950 Nizhny Novgorod, Russia
A cost-effective and easily scalable method for the synthesis of ultrapure submicron alumina powders with a narrow particle size distribution and high sinterability is proposed. Aqueous solutions of aluminum hydroxide nanoclusters obtained by AC electrochemical dissolution of aluminum metal in the presence of nitric acid were used as a precursor. Hot pressing and vacuum sintering were used to evaluate the possibility of obtaining Al2O3 optical ceramics from synthesized powders.
1. Y.Wu.Y.Zhang, X.Huang, J.Guo, Ceram. Int., 27, 265 (2001). https://doi.org/10.1016/S0272-8842(00)00074-2
2. M.L.Panchula, J.Y.Ying, Nanostructured Mater., 9, 161 (1997). https://doi.org/10.1016/S0965-9773(97)00043-3
3. V.D.Zhuravlev et al., Ceram. Int., 39, 1379 (2013). https://doi.org/10.1016/j.ceramint.2012.07.078
4. J.Li, Y.Pan, C.Xiang et al,, Ceram. Int., 32, 587 (2006). https://doi.org/10.1016/j.ceramint.2005.04.015
5. P.K.Sharma, M.H.Jilavi, D.Burgard et al., J. Am. Ceram. Soc., 81, 2732 (2005). https://doi.org/10.1111/j.1151-2916.1998.tb02687.x
6. S.Woo, J.-H.Park, C.K.Rhee et al., Microelectron. Eng., 89, 89 (2012). https://doi.org/10.1016/j.mee.2011.03.146
7. A.F.Dresvyannikov, E.V.Petrova, M.A.Tsyganova, Russ. J. Phys. Chem. A, 84, 642 (2010). https://doi.org/10.1134/S0036024410040217
8. V.V.Korobochkin, V.I.Kosintsev, L.D.Bystritskii, E.P.Kovalevskii, Inorg. Mater., 38, 914 (2002). https://doi.org/10.1023/A:1020042208786
9. D.Pathania, R.Katwal, H.Kaur, Int. J. Miner. Metall. Mater., 23, 358 (2016). https://doi.org/10.1007/s12613-016-1245-9
10. W.Wang et al., Proc. Natl. Acad. Sci., 110, 18397 (2013). https://doi.org/10.1073/pnas.1315396110
11. B.L.Fulton et al., Chem. Mater., 29, 7760 (2017). https://doi.org/10.1021/acs.chemmater.7b02106
12. V.V.Drobotenko, S.S.Balabanov, T.I.Storozheva, Inorg. Mater., 46, 295 (2010). https://doi.org/10.1134/S0020168510030155
13. S.S.Balabanov, E.M.Gavrishchuk, V.V.Drobotenko et al., Inorg. Mater., 50, 830 (2014). https://doi.org/10.1134/S0020168514080032
14. M.Shojaie-Bahaabad, E.Taheri-Nassaj, Mater. Lett., 62, 3364 (2008). https://doi.org/10.1016/j.matlet.2008.03.012
15. B.Sathyaseelan, I.Baskaran, K.Sivakumar, Soft Nanosci. Lett., 3, 69 (2013). https://doi.org/10.4236/snl.2013.34012
16. J.A.Jimenez, I.Padilla, A.Lopez-Delgado et al., Int. J. Appl. Ceram. Technol., 12, E178 (2015)
.