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

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

doi:10.1016/j.jeurceramsoc.2014.12.003

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

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

22 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 language	English
Pages (from-to)	1771-1776
Number of pages	6
Journal	Journal of the European Ceramic Society
Volume	35
Issue number	6
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2014.12.003
Publication status	Published - 2015 Jun 1
Externally published	Yes

Keywords

PLS ceramic
Single crystal-like
Texturing process

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

Access to Document

10.1016/j.jeurceramsoc.2014.12.003

Cite this

@article{c14f7d3ad2a5449c80a71ee110e78611,

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

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.",

keywords = "PLS ceramic, Single crystal-like, Texturing process",

author = "Zhipeng Gao and Suzuki, {Tohru S.} and Salvatore Grasso and Yoshio Sakka and Reece, {Mike J.}",

note = "Funding Information: Prof. M.J. Reece would like to acknowledge the support of Sunchon National University, South Korea , through the BK21+ programme. Publisher Copyright: {\textcopyright} 2014.",

year = "2015",

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doi = "10.1016/j.jeurceramsoc.2014.12.003",

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AU - Gao, Zhipeng

AU - Suzuki, Tohru S.

AU - Grasso, Salvatore

AU - Sakka, Yoshio

AU - Reece, Mike J.

PY - 2015/6/1

Y1 - 2015/6/1

N2 - 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.

AB - 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.

KW - PLS ceramic

KW - Single crystal-like

KW - Texturing process

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