# Calcium ion conduction anisotropy of <i>b</i>-axis-aligned CaAl<sub>4</sub>O<sub>7</sub> polycrystal

https://mdr.nims.go.jp/datasets/611afa27-9979-420d-9d84-fd636d462b37

## File

- [132_24026.pdf](https://mdr.nims.go.jp/filesets/244e760e-47e9-436e-9bcd-20fb8a309026/download) ([Detail](https://mdr.nims.go.jp/filesets/244e760e-47e9-436e-9bcd-20fb8a309026.md))

## Id

611afa27-9979-420d-9d84-fd636d462b37

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-11-11T15:56:00.080953Z

## Updated at

2024-11-13T03:30:33.706397Z

## Published at

2024-11-13T03:30:33.781824Z

## Doi



## First published url

https://doi.org/10.2109/jcersj2.24026

## Date published

2024-07-01

## Recorded date published

2024

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Calcium ion conduction anisotropy of <i>b</i>-axis-aligned CaAl<sub>4</sub>O<sub>7</sub>
    polycrystal
  title_type: original
  lang: en

## Description

- description: To investigate the anisotropy of Ca2+ conduction, the b-axis-aligned
    CaAl4O7 (space group C2/c) polycrystal was prepared by colloidal processing under
    high magnetic field of 12T followed by sintering at 1773K for 2 h. The texture
    fraction of {0k0}, expressed as the Lotgering factor f0k0, was 0.63. The c101a
    directions of individual crystal grains were randomly distributed around the grain-alignment
    direction of the polycrystal. The conductivities perpendicular (σ⊥) and parallel
    (σ//) to the grain alignment direction were compared with the conductivity (σrandom)
    of random grain oriented polycrystal between 773 and 1073 K. The σ⊥ ranging from
    3.09 x 10^17 to 1.80x10^15 Scm^-1, showed the highest value at each temperature,
    followed by σrandom and σ// in that order. The results have confirmed for the
    first time the anisotropy of Ca2+ conduction and strongly supported the preferential
    conduction in the <101> direction predicted in the literature by the bond valence
    method.
  description_type: abstract
  lang: und

## Creator

- name: Koichiro Fukuda
  role: author
- name: Fumiya Nakajima
  role: author
- name: Daisuke Urushihara
  role: author
- name: Toru Asaka
  role: author
- name: Tohru S. Suzuki
  role: author
  orcid: https://orcid.org/0000-0001-9458-6863
- name: Abid Berghout
  role: author
- name: Assil Bouzid
  role: author
- name: Olivier Masson
  role: author
- name: Philippe Thomas
  role: author

## Contact agent



## Publisher

organization: Ceramic Society of Japan

## Managing organization



## Keyword

- subject: Calcium ion conductor
  schema: not_defined
- subject: Grossite
  schema: not_defined
- subject: Grain alignment
  schema: not_defined
- subject: Anisotropy
  schema: not_defined
- subject: Impedance spectroscopy
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Journal of the Ceramic Society of Japan
  issn: '13486535'
  volume: '132'
  issue: '7'
  article_number: '24026'

## Conference



## Related item



## Funding

- identifier: 19K22051
  funder_name: JSPS
  description: 多価陽イオン伝導性一軸配向多結晶体の材料設計と開発

## Instrument



## Instrument operator



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## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



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## Fileset

- id: 244e760e-47e9-436e-9bcd-20fb8a309026
  filename: 132_24026.pdf
  content_type: application/pdf
  size: 1356109
  md5: 77ed3f6fc10bb5f43f14214517a3e021

## Thumbnail

fileset_id: 244e760e-47e9-436e-9bcd-20fb8a309026
filename: 132_24026.pdf