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Low temperature hydrothermal routes to various PZT stoichiometries

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Abstract

The production of lead zirconate titanate (PZT) with a variation in Zr and Ti ratios using a hydrothermal method has been attempted. We show that when reactions are conducted at 160 °C, for 4 h, the phase of PZT produced is independent of the initial Zr/Ti precursor ratio. In all cases we produce PZT with a crystal structure close to the morphotropic phase boundary, i.e. Zr/Ti ≈ 52:48. The excess precursors either fail to react, or form amorphous and crystalline impurity phases that are detectable via powder XRD after the hydrothermal treatment. Using an excess of Pb precursor is shown to aid the crystallisation of the resultant PZT powder, as verified by SEM and FIB analysis.

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Authors and Affiliations

  1. Building 30, Nanotechnology Centre, Cranfield University, Cranfield, MK43 0AL, UK

    Scott Harada & Steve Dunn

  2. EPFL–STI–IMX–Ceramics Laboratory, Building MXC238-Station 12, CH.-1015, Lausanne, Switzerland

    Scott Harada

Authors
  1. Scott Harada
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  2. Steve Dunn
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Correspondence to Steve Dunn.

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Harada, S., Dunn, S. Low temperature hydrothermal routes to various PZT stoichiometries. J Electroceram 20, 65–71 (2008). https://doi.org/10.1007/s10832-007-9345-6

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  • DOI: https://doi.org/10.1007/s10832-007-9345-6

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