Microstructure and dielectric properties of sintered Li-Nb-Ti-O solid solution ceramics having superstructure

Yo Yamamotof, Hiroyuki Hayashi, Tohru Sekino, Tadachika Nakayama, Hiroki Kondo, Masashi Wada, Tomohiko Adachi, Koichi Niihara

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

Effects of preparation conditions on the microstructures and periodicity of the superstructure for Li1+xNb1-xTixO 3 phase M polycrystals were investigated. Obtained specimens, mainly comprised of elongated plate-like grains, and their surfaces were found to be parallel to periodical domains. Sintered materials were found to contain Nb-doped Li2TiO3 based solid solution that was one of the end members in the phase diagram of constituent materials. Superperiodicity of phase M was found to be affected by the both chemical compositions and sintering conditions. The dielectric constant increased with increasing of periodicity of superstructures, which could be varied by the amount of Ti concentration.

Original languageEnglish
Pages (from-to)74-79
Number of pages6
JournalMaterials Research Innovations
Volume7
Issue number2
DOIs
Publication statusPublished - 2003 Apr 1

Keywords

  • Ceramics
  • Dielectric property
  • LiNbO
  • Sintering
  • Superstructure
  • TiO

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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