Highly anisotropic single crystal-like La2Ti2O7 ceramic produced by combined magnetic field alignment and templated grain growth

Zhipeng Gao, Tohru Suzuki, Salvatore Grasso, Yoshio Sakka, Mike J. Reece

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Highly anisotropic single crystal-like ceramic of La2Ti2O7 was successfully prepared by an effective 2-D grain alignment using both seed crystals and magnetic field alignment during slip casting followed by templated grain growth (TGG). It was found that the highest magnetic susceptibility is in the [00l] direction of LTO. The grain orientation factors of the three directions for the textured ceramic were calculated as 0.76, 0.71, and 0.73, respectively. The dielectric and ferroelectric properties of the textured ceramic were found to be single crystal like. The dielectric permittivity of the aligned ceramic in the different directions is higher than for single crystal due to contributions from domain walls and grain boundaries.

Original languageEnglish
Pages (from-to)1771-1776
Number of pages6
JournalJournal of the European Ceramic Society
Volume35
Issue number6
DOIs
Publication statusPublished - 2015 Jun 1
Externally publishedYes

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Grain growth
Single crystals
Magnetic fields
Domain walls
Magnetic susceptibility
Ferroelectric materials
Casting
Grain boundaries
Permittivity
Crystals
Direction compound

Keywords

  • PLS ceramic
  • Single crystal-like
  • Texturing process

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

Cite this

Highly anisotropic single crystal-like La2Ti2O7 ceramic produced by combined magnetic field alignment and templated grain growth. / Gao, Zhipeng; Suzuki, Tohru; Grasso, Salvatore; Sakka, Yoshio; Reece, Mike J.

In: Journal of the European Ceramic Society, Vol. 35, No. 6, 01.06.2015, p. 1771-1776.

Research output: Contribution to journalArticle

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AU - Reece, Mike J.

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