# Healing behavior of microcracks on the surface of yttria-stabilized polycrystals using an ultrafast high-temperature sintering method

https://mdr.nims.go.jp/datasets/485e25e1-ea12-4f5e-a568-633ab599938f

## File

- [UHTS_healing.pdf](https://mdr.nims.go.jp/filesets/3b8f0a84-a5ca-404d-9ce5-41108d5087c9/download) ([Detail](https://mdr.nims.go.jp/filesets/3b8f0a84-a5ca-404d-9ce5-41108d5087c9.md))

## Id

485e25e1-ea12-4f5e-a568-633ab599938f

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-10T04:35:59.190435Z

## Updated at

2025-02-12T07:30:15.518569Z

## Published at

2025-02-12T07:30:16.590810Z

## Doi

https://doi.org/10.48505/nims.5321

## First published url

https://doi.org/10.1016/j.ceramint.2024.11.394

## Date published

2024-11-26

## Recorded date published

2025-2

## Resource type

journal_article

## Manuscript type

authors_original

## Collection



## Title

- title: Healing behavior of microcracks on the surface of yttria-stabilized polycrystals
    using an ultrafast high-temperature sintering method
  title_type: original
  lang: en

## Description

- description: A technique to heal microcracks on ceramic surfaces in a relatively
    short time is an attractive proposition for extending the lifetime of ceramics.
    To this end, we used the ultrafast high-temperature sintering (UHS) method, which
    permits a rapid temperature increase, to heal Vickers indentation microcracks
    generated in a 4 mol% Y2O3-doped ZrO2 polycrystal. We examined the microstructure
    following microcrack healing using transmission electron microscopy and scanning
    electron microscopy with continuous focused ion beam slicing along the microcrack
    plane. This revealed that the microcrack healing process involves crack pinching
    and neck formation, followed by the growth of the neck. The microcracks were fully
    healed at the surface by UHS treatment at 2000 C for 20 s. However, residual pores
    corresponding to the unhealed state were observed inside the material. We hypothesized
    that these pore residues were caused by significant grain coarsening during UHS.
    It is essential to optimize the UHS temperature and time to account for grain
    coarsening and facilitate the application of this method to microcrack healing.
  description_type: abstract
  lang: und

## Creator

- name: Toshiki Sato
  role: author
  orcid: https://orcid.org/0009-0009-6673-2355
- name: Ayu Kodaira
  role: author
- name: Tomoharu Tokunaga
  role: author
- name: Koji Morita
  role: author
  orcid: https://orcid.org/0000-0001-6040-7054
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Takahisa Yamamoto
  role: author
  orcid: https://orcid.org/0000-0001-9929-2805

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: ultrafast high-temperature sintering (UHTS)
  schema: not_defined
- subject: microcrack healing
  schema: not_defined
- subject: Vickers
  schema: not_defined

## Rights

- identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Ceramics International
  issn: '02728842'
  volume: '51'
  issue: '4'
  start_page: 4178
  end_page: 4184

## Conference



## Related item



## Funding

- identifier: JPMXP1224NU0038
  funder_name: Ministry of Education, Culture, Sports, Science and Technology
- funder_name: Japan Science and Technology Agency
- identifier: JPMJCR1996
  funder_name: Core Research for Evolutional Science and Technology

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## Fileset

- id: 3b8f0a84-a5ca-404d-9ce5-41108d5087c9
  filename: UHTS_healing.pdf
  content_type: application/pdf
  size: 7716500
  md5: 76717b9e60375bf88988892e73505c98

## Thumbnail

fileset_id: 3b8f0a84-a5ca-404d-9ce5-41108d5087c9
filename: UHTS_healing.pdf