Crystallization of lead zirconate titanate without passing through pyrochlore by new solution process

Hiroyuki Kameda, Jinwang Li, Dam Hieu Chi, Ayumi Sugiyama, Koichi Higashimine, Tomoya Uruga, Hajime Tanida, Kazuo Kato, Toshihiko Kaneda, Takaaki Miyasako, Eisuke Tokumitsu, Tadaoki Mitani, Tatsuya Shimoda

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


We report a novel low-temperature crystallization path for perovskite lead zirconate titanate (PZT) from solution. The modification of a PZT solution by monoethanolamine (MEA) resulted in a change in the crystallization behavior. MEA was strongly coordinated to the metal ions, resulting in destroy of multinuclear metal organic complexes. This led to a remarkably increased pyrolysis temperature, and Pb 2+ was reduced into Pb 0 because of a reducing environment at 200-300°C. Nanoscopic separations of Pb 0 was later transformed into uniformly distributed α-PbO nanocrystals and clusters in the amorphous Zr/Ti-O matrix, and finally the sample crystallized into perovskite at 400-500°C. On the other hand, pyrochlore phase was observed in the conventional crystallization process. The avoidance of pyrochlore formation is the key for the low-temperature crystallization of perovskite. X-ray absorption fine structure (XAFS) analysis was performed to reveal the structures in solutions and amorphous phases.

Original languageEnglish
Pages (from-to)1667-1680
Number of pages14
JournalJournal of the European Ceramic Society
Issue number8
Publication statusPublished - 2012 Jul
Externally publishedYes


  • Electron microscopy
  • Low-temperature crystallization
  • Precursor-chemical preparation
  • PZT
  • X-ray methods

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry


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