Abstract
Preliminary EELS and EDS analyses undertaken on CaCu3Ti 4O12 ceramics, sintered for 3 and 24 hrs at 1100°C in air, have suggested that there are differences in the composition and valence of the Cu and Ti at grain boundaries as compared with the bulk composition. For the 3 hour sinter a change was observed in the Cu valence and for the 24 hour a change in both Ti and Cu valences was detected. This variation in composition may explain the electrical properties of high permittivity at room temperature exhibited by these ceramics. © 2006 IOP Publishing Ltd.
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CITATION STYLE
Calvert, C. C., Rainforth, W. M., Sinclair, D. C., & West, A. R. (2006). Characterisation of grain boundaries in CaCu3Ti 4O12 using HREM, EDS and EELS. In Journal of Physics: Conference Series (Vol. 26, pp. 65–68). Institute of Physics Publishing. https://doi.org/10.1088/1742-6596/26/1/015
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