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Issue 39, 2015
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Unusual structural-disorder stability of mechanochemically derived-Pb(Sc0.5Nb0.5)O3

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Abstract

This study demonstrates the important effect of processing on the B-site ordering in Pb(Sc0.5Nb0.5)O3 ceramics. In contradiction to previous observations on ceramics prepared from solid state synthesis powders, which show a distinctive B-site cation ordering when annealed below ∼1200 °C, in mechanochemically derived ceramics sintered 200 °C below this temperature, we do not observe such ordering, regardless of the conditions of thermal post-annealing. Accordingly, atomic-scale transmission electron microscopy revealed nanometer-sized B-site ordered regions in mechanochemically derived ceramics contrary to the larger regions extending through the whole grains in solid-state derived ceramics.

Graphical abstract: Unusual structural-disorder stability of mechanochemically derived-Pb(Sc0.5Nb0.5)O3

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Publication details

The article was received on 20 Jul 2015, accepted on 09 Sep 2015 and first published on 09 Sep 2015


Article type: Paper
DOI: 10.1039/C5TC02205C
Author version available: Download Author version (PDF)
Citation: J. Mater. Chem. C, 2015,3, 10309-10315
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    Unusual structural-disorder stability of mechanochemically derived-Pb(Sc0.5Nb0.5)O3

    H. Uršič, A. Benčan, G. Dražič, G. Esteves, J. L. Jones, T. Usher, T. Rojac, S. Drnovšek, M. Deluca, J. Jouin, V. Bobnar, G. Trefalt, J. Holc and B. Malič, J. Mater. Chem. C, 2015, 3, 10309
    DOI: 10.1039/C5TC02205C

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