Abstract
Thermally stimulated segregation on grain surfaces in lead zirconate titanate ceramics has been shown for the first time to be selective, as a result of which atoms occupying the same crystallographic position accumulate in the surface layer in a ratio differing from that in the bulk. The phase precipitating on the surface of unoriented parent grains may have preferential orientation owing to the orienting effect of single-crystal micrograins. Surface segregation markedly changes the composition of the solid solution toward disproportionation, leading to the formation of TiO2 and PbZrO3 instead of PbTi0.6Zr0.4O3.
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Original Russian Text © Yu.Ya. Tomashpolsky, N.V. Sadovskaya, 2008, published in Neorganicheskie Materialy, 2008, Vol. 44, No. 5, pp. 611–615.
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Tomashpolsky, Y.Y., Sadovskaya, N.V. Thermally stimulated surface autosegregation in lead zirconate titanate ceramics. Inorg Mater 44, 530–533 (2008). https://doi.org/10.1134/S002016850805018X
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DOI: https://doi.org/10.1134/S002016850805018X