# Promoting effects of alternating current and input power on grain growth behavior of cubic ZrO<sub>2</sub> polycrystals

https://mdr.nims.go.jp/datasets/922de189-9be3-4dc2-923c-2a953ae475c2

## Download

- [manuscript R1_grain_growth_ver3.docx](https://mdr.nims.go.jp/filesets/96d4ebb6-2274-4b3d-b29d-574d5838b010/download)

## Id

922de189-9be3-4dc2-923c-2a953ae475c2

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-09-25T10:44:51.758903Z

## Updated at

2025-01-15T07:31:20.008352Z

## Published at

2025-01-15T07:31:20.519714Z

## Doi

https://doi.org/10.48505/nims.4777

## First published url

https://doi.org/10.1111/jace.19679

## Date published

2024-01-15

## Recorded date published

2024-5

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Promoting effects of alternating current and input power on grain growth
    behavior of cubic ZrO<sub>2</sub> polycrystals
  title_type: original
  lang: en

## Description

- description: The grain growth behavior during an AC flash event was examined in
    8 mol% yttria-stabilized cubic zirconia (8Y-CSZ) polycrystals. The effects of
    current/power densities on the grain growth behavior were investigated in 8Y-CSZ
    samples with different specific surface areas at a constant sample temperature
    and applied field strength. The grain growth rate of flash-treated 8Y-CSZ was
    300 times faster than that of heat-treated 8Y-CSZ at the same sample temperature
    in the absence of an electric current/field, suggesting that the promoted grain
    growth cannot be ascribed only to a thermal effect but also to an athermal effect
    occurring during the AC flash event. Moreover, the grain growth during the flash
    treatment strongly depends on the applied current/power densities and grain size;
    in particular, the grain growth showed enhancements with increasing applied current/power
    densities and for relatively small grain sizes. This result suggests that the
    grain boundary diffusivity of cations, which are regarded as the rate-controlling
    species for grain growth, could be accelerated by tuning the current/power densities
    during the flash event. The grain growth mechanism was characterized using a grain
    growth exponent (n) value of 4.8 for the flash treatment at high current/power
    densities and using a conventional value of n = 3 under normal heat treatment
    conditions. The dependence of the grain growth behavior on the AC current/power
    density suggests that because the cation diffusivity is accelerated due to the
    formation of numerous point defects during the AC flash event, the grain growth
    mechanism might depend on the current/power densities and differ from that of
    conventional grain growth.
  description_type: abstract
  lang: und

## Creator

- name: Kohta Nambu
  role: author
  orcid: https://orcid.org/0000-0001-8062-5825
- name: Akio Ishii
  role: author
- name: Kohei Soga
  role: author
  orcid: https://orcid.org/0000-0001-7364-6724
- name: Koji Morita
  role: author
  orcid: https://orcid.org/0000-0001-6040-7054
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: flash event
  schema: not_defined
- subject: grain growth
  schema: not_defined
- subject: current effect
  schema: not_defined

## Rights

- description: 'This is the peer reviewed version of the following article: Promoting
    effects of alternating current and input power on grain growth behavior of cubic
    ZrO2 polycrystals, which has been published in final form at https://doi.org/10.1111/jace.19679.
    This article may be used for non-commercial purposes in accordance with Wiley
    Terms and Conditions for Use of Self-Archived Versions. This article may not be
    enhanced, enriched or otherwise transformed into a derivative work, without express
    permission from Wiley or by statutory rights under applicable legislation. Copyright
    notices must not be removed, obscured or modified. The article must be linked
    to Wiley’s version of record on Wiley Online Library and any embedding, framing
    or otherwise making available the article or pages thereof by third parties from
    platforms, services and websites other than Wiley Online Library must be prohibited.'
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2024-01-15
end_date: 2025-01-15

## Journal

- title: Journal of the American Ceramic Society
  issn: '00027820'
  volume: '107'
  issue: '5'
  start_page: 3600
  end_page: 3610

## Conference



## Related item



## Funding

- identifier: JPMJCR1996
  funder_name: JST
- identifier: 20H02444
  funder_name: JSPS
- identifier: 22J11973
  funder_name: JSPS

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## Fileset

- id: 96d4ebb6-2274-4b3d-b29d-574d5838b010
  filename: manuscript R1_grain_growth_ver3.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 5176316
  md5: d19e70b73858b9101f54036dbbaa0920

## Thumbnail

fileset_id: 96d4ebb6-2274-4b3d-b29d-574d5838b010
filename: manuscript R1_grain_growth_ver3.docx