Templated grain growth of <001> textured PMN-28PT using SrTiO 3 templates

Kristen H. Brosnan, Stephen F. Poterala, Richard J. Meyer, Scott Misture, Gary L. Messing

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Highly textured PMN-28PT (0.72Pb(Mg1/3Nb2/3)O 3-0.28PbTiO3) ceramics were produced by templated grain growth on <001> oriented platelet-shaped SrTiO3 template particles with an aspect ratio of 10-15. The templates were aligned in PMN-28PT matrix powder via tape casting and fired in an O2-PbO atmosphere at 1150°C for up to 15 h. This resulted in textured ceramics with a 40 micrometer grain size and without residual templates. The volume fraction of textured material (f) and the orientation parameter (r) were quantified by fitting X-ray diffraction rocking curve data to the March-Dollase equation. Processing conditions were optimized to achieve the best possible values of f and r for the chosen templates and matrix powder. A texture fraction of at least 81 vol% and an orientation parameter of 0.2 were achieved when all random matrix grains were consumed (a perfect textured ceramic would show a texture fraction of 100 vol% and an orientation parameter of 0).

Original languageEnglish (US)
Pages (from-to)S133-S139
JournalJournal of the American Ceramic Society
Issue numberSUPPL. 1
StatePublished - Jan 2009

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry


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