Templated grain growth in macroporous materials

Florian Bouville, Etienne Portuguez, Yunfei Chang, Gary L. Messing, Adam J. Stevenson, Eric Maire, Loic Courtois, Sylvain Deville

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

We demonstrate a facile method to produce crystallographically textured, macroporous materials using a combination of modified ice templating and templated grain growth (TGG). The process is demonstrated on alumina and the lead-free piezoelectric material sodium potassium niobate. The method provides macroporous materials with aligned, lamellar ceramic walls which are made up of crystallographically aligned grains. Each method showed that the ceramic walls present a long-range order over the entire sample dimensions and have crystallographic texture as a result of the TGG process. We also present a modification of the March-Dollase equation to better characterize the overall texture of materials with textured but slightly misaligned walls. The controlled crystallographic and morphologic orientation at two different length scales demonstrated here can be the basis of multifunctional materials.

Original languageEnglish (US)
Pages (from-to)1736-1742
Number of pages7
JournalJournal of the American Ceramic Society
Volume97
Issue number6
DOIs
StatePublished - Jun 2014

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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