Brittle matrix is usually toughened by metallic phases to enhance the fracture toughness. In the present study of alumina nickel, composite with 15 wt% of nickel was prepared by sol-gel route by using Al(C3H7O)3, NiCl2.6H2O, and dextrose as precursor. The precursor gel composite was reduced by the novel in situ reduction to obtain metallic nickel dispersed in the alumina matrix. Prior to this reduction of NiCl2.6H2O, a novel technique of repeated evacuation and purging of the gel was carried out with N2 in order to replace the air present in the pores of gel, and secondly the in situ reduction was carried out in a charcoal boat in a N2 atmosphere to generate sufficient reducing atmosphere to prevent reoxidation of metallic Ni. The alumina-nickel nanocomposites were thoroughly investigated by different characterization techniques like X-ray diffraction, Dynamic light scattering, etc. Interestingly, the synthesis of a finer grained alumina-Ni composite was obtained when it was reduced at higher temperature, unlike expected and this phenomenon was explained in the text.
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Tuan, W.H., Brook, R.J.: The toughening of alumina with nickel inclusions. J. Eur. Ceram. Soc. 6, 31–37 (1990)
Tuan, W.H., Lin, M.C., Wu, H.H.: Preparation of Al2O3- Ni composites by pressureless sintering in H2. Ceram. Int. 21, 221–225 (1995)
Sánchez-Herencia, A.J., Hernández, N., Moreno, R.: Fracture behaviour of Pressureless sintered nickel-reinforced alumina composites. Key Eng. Mater. 290, 324–327 (2005)
Travitzky, N.A.: Microstructure and mechanical properties of alumina/copper composites fabricated by different infiltration techniques. Mater. Lett. 36, 114–117 (1998)
Dash, K., Chaira, D., Ray, B.C.: Synthesis and characterization of aluminium-alumina micro- and nano-composites by spark plasma sintering. Mater. Res. Bull. 48, 2535–2542 (2013)
Díaz, L.A., Valdés, A.F., Díaz, C., Espino, A.M., Torrecillas, R.: Alumina/molybdenum nanocomposites obtained in organic media. J. Eur. Ceram. Soc. 23, 2829–2834 (2003)
Guichard, J.L., Tillement, O., Mocellin, A.: Preparation and characterization of alumina-iron cermets by hot-pressing of nanocomposite powders. J. Mater. Sci. 32, 4513–4521 (1997)
Dutta, A.K., Chattopadhyaya, A.B., Ray, K.K.: Progressive flank wear and machining performance of silver toughened alumina cutting tool inserts. Wear. 261, 885–895 (2006)
Shi, X., Pan, Y., Guo, J.: Fabrication and magnetic properties of cobalt-dispersed-alumina composites. Ceram. Int. 33, 1509–1513 (2007)
Seleman, M., El-S, M.: Effects of nickel distribution on the strengthening and toughening of alumina ceramics. J. Mater. Sci. Technol. 24, 723–728 (2008)
Yao, X., Huang, Z., Chen, L., Jiang, D., Tan, S., Michel, D., Wang, G., Mazerolles, L., LiousPastol, J.: Alumina–nickel composites densified by spark plasma sintering. Mater. Lett. 59, 2314–2318 (2005)
Tuan, W.H., Brook, R.J.: Processing of alumina/nickel composites. J. Eur. Ceram. Soc. 10, 95–100 (1992)
Sun, X., Yeomans, J.A.: Microstructure and fracture toughness of nickel particle toughened alumina matrix composites. J. Mater. Sci. 31, 875–880 (1996)
Fahrenholtz, W.G., Ellerby, D.T., Loehman, R.E.: Al2O3–Ni Composites with High Strength and Fracture Toughness. J. Am. Ceram. Soc. 83, 1279–1280 (2000)
Jones, S.A., Burlitch, J.M., Üstündag, E., Yoo, J., Zehnder, A.T.: Nickel-alumina composites: in situ synthesis by a displacement reaction, and mechanical properties. Mater. Res. Soc. Symp. Proc. 365, 53–58 (1994)
Rodeghiero, E.D., Tse, O.K., Chisaki, J., Giannelis, E.P.: Synthesis and properties of Ni-α-Al2O3 composites via sol-gel. Mater. Sci. Eng. A. 195, 151–161 (1995)
Breval, E., Dodds, G., Pantano, C.G.: Properties and microstructure of Ni-alumina composite materials prepared by the sol/gel method. Mater. Res. Bull. 20, 1191–1205 (1985)
Breval, E., Deng, Z., Chiou, S., Pantano, C.G.: Sol-gel prepared Ni-Alumina composite materials. J. Mater. Sci. 27, 1464–1468 (1992)
Kafkaslıoğlu, B., Tür, Y.K.: Pressureless sintering of Al2O3/Ni nanocomposites produced by heterogeneous precipitation method with varying nickel contents. Int. J. Refract. Met. Hard Mater. 57, 139–144 (2016)
Yoldas, B.E.: Alumina gels that form porous transparent Al2O3. J. Mater. Sci. 10, 1856–1860 (1975)
Warrier, K.G.K.: Sol-gel concept as applied to alumina ceramics. Trans. Indian Ceram. Soc. 54, 144 (1995)
Laird, G.L.: Ward, anhydrous nickel (II) halides and their Tetrakis(ethanol) and 1,2-Dimethoxyethane complexes inorganic syntheses. Inorg. Synth. 13, 154–164 (1972)
Bhattacharyya, A., Chakraborti, P.C., Mukherjee, S., Mitra, M.K., Das, G.C.: Preparation of alumina-silica-nickel nanocomposite by in situ reduction through sol-gel route. Sci. Technol. Adv. Mater. 2, 449–454 (2001)
Wells, A.F.: Structural Inorganic Chemistry, 5th Edition. Oxford University Press, Oxford (1984)
Gaskell, D.R.: Introduction to the Thermodynamics of Materials. Talor and Francis, U.SA (1798)
Houminer, Y., Patai, S.: Pyrolytic reactions of carbohydrates. Part II Thermal Decomposition of D-glucose. Isr. J. Chem. 7, 513–524 (1969)
Perry, R.H., Green, D.W., Maloney, J.O.: Perrys’ Chemical Engineers’ Handbook. McGraw-Hill, New York (1997)
The authors acknowledge the support of “Indian Association for the Cultivation of Science” to help us to conduct DLS and HRTEM study.
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Guha, S., Ghosh, S.K., Chaudhuri, M.G. et al. Synthesis and characterization of alumina-nickel nanocomposite through sol-gel route by in situ reduction. J Aust Ceram Soc (2020). https://doi.org/10.1007/s41779-020-00453-5
- Sol-gel chemistry
- In situ