# High-temperature deformation in bulk polycrystalline hafnium carbide consolidated using spark plasma sintering

https://mdr.nims.go.jp/datasets/e5fb5382-e4db-4547-9351-180195c542f3

## File

- [JECESOC-D-21-00718_R1.pdf](https://mdr.nims.go.jp/filesets/79a26f02-71fe-4cd7-8dc1-be69079831f6/download) ([Detail](https://mdr.nims.go.jp/filesets/79a26f02-71fe-4cd7-8dc1-be69079831f6.md))

## Id

e5fb5382-e4db-4547-9351-180195c542f3

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-11-14T06:25:49.989169Z

## Updated at

2024-11-21T07:32:16.845189Z

## Published at

2024-11-21T07:32:16.899479Z

## Doi

https://doi.org/10.48505/nims.4974

## First published url

https://doi.org/10.1016/j.jeurceramsoc.2021.08.038

## Date published

2021-08-21

## Recorded date published

2021-12

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: High-temperature deformation in bulk polycrystalline hafnium carbide consolidated
    using spark plasma sintering
  title_type: original
  lang: en

## Description

- description: In this study, we report the three-point flexural strength and fracture
    toughness of monolithic hafnium carbide up to 2000 °C. HfC with different grain
    sizes was consolidated using the spark plasma sintering method. Coarse-grained
    monoliths showed a weak dependence on the strain rate during high-temperature
    tests at 1600 °C – 2000 °C. In contrast, results for the ceramics with a grain
    size below 20 μm indicated a positive dependence of the yield strength vs strain
    rate. This allowed us to identify the activation energy for high-temperature deformation
    in flexure as 370 kJ/mol. This level of activation energy is in satisfactory agreement
    with reports about the diffusion of C in hafnium carbide.
  description_type: abstract
  lang: und

## Creator

- name: D. Demirskyi
  role: author
  organization: National Institute for Materials Science
- name: O. Vasylkiv
  role: author
  orcid: https://orcid.org/0000-0002-5041-6130
  organization: National Institute for Materials Science
- name: K. Yoshimi
  role: author

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: hafnium carbide
  schema: not_defined
- subject: grain size
  schema: not_defined
- subject: flexural strength
  schema: not_defined
- subject: high-temperature materials
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2021-08-21
end_date: 2023-08-21

## Journal

- title: Journal of the European Ceramic Society
  issn: '09552219'
  volume: '41'
  issue: '15'
  start_page: 7442
  end_page: 7449

## Conference



## Related item



## Funding

- funder_name: National Institute for Materials Science

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



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## Fileset

- id: 79a26f02-71fe-4cd7-8dc1-be69079831f6
  filename: JECESOC-D-21-00718_R1.pdf
  content_type: application/pdf
  size: 2660863
  md5: ac14585c0d641dcff60de74baa5ec479

## Thumbnail

fileset_id: 79a26f02-71fe-4cd7-8dc1-be69079831f6
filename: JECESOC-D-21-00718_R1.pdf