# Ultra-high temperature flexure and strain driven amorphization in polycrystalline boron carbide bulks

https://mdr.nims.go.jp/datasets/d85dc3b6-fce3-4252-a59b-80278f6018ac

## File

- [TEM_based_b4c_manuscript_ScriptaMater-2021-11-25.docx](https://mdr.nims.go.jp/filesets/28a6ff3d-8491-440f-9e28-2c53792bea35/download) ([Detail](https://mdr.nims.go.jp/filesets/28a6ff3d-8491-440f-9e28-2c53792bea35.md))

## Id

d85dc3b6-fce3-4252-a59b-80278f6018ac

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-11-14T06:08:59.218328Z

## Updated at

2024-11-21T07:32:10.274065Z

## Published at

2024-11-21T07:32:10.967677Z

## Doi

https://doi.org/10.48505/nims.4972

## First published url

https://doi.org/10.1016/j.scriptamat.2021.114487

## Date published

2022-01-04

## Recorded date published

2022-3

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Ultra-high temperature flexure and strain driven amorphization in polycrystalline
    boron carbide bulks
  title_type: original
  lang: en

## Description

- description: The temperature dependence of the flexural strength of sintered boron
    carbide was studied. At temperatures above 2000 °C, B4C showed an ultrahigh flexural
    strength exceeding 1 GPa which was accompanied by a change in the deformation
    mechanism from brittle fracture to plastic deformation. Scanning transmission
    electron microscopy (STEM) observations revealed that the amorphization can be
    of microstructural origin for the observed plasticity in B4C at temperatures above
    2000 °C and a strain rate of 3•10−3 s−1. The amorphization occurs inside of the
    severely deformed grains. Flexural tests below 2000 °C provided evidence for the
    formation of stacking faults or dislocations, which are ordinary defects after
    the flexural tests. The results at 2000 °C suggest that the magnitude of the tensile
    stresses imposed on the B4C grains during deformation in flexure and the total
    strain transferred to a ceramic during the deformation process play the dominant
    role in the crystalline-amorphous transformation.
  description_type: abstract
  lang: und

## Creator

- name: D. Demirskyi
  role: author
  organization: National Institute for Materials Science
- name: H. Sepehri-Amin
  role: author
  orcid: https://orcid.org/0000-0002-7856-7897
  organization: National Institute for Materials Science
- name: T.S. Suzuki
  role: author
  orcid: https://orcid.org/0000-0001-9458-6863
  organization: National Institute for Materials Science
- name: K. Yoshimi
  role: author
- name: O. Vasylkiv
  role: author
  orcid: https://orcid.org/0000-0002-5041-6130
  organization: National Institute for Materials Science

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: Boron carbide
  schema: not_defined
- subject: Transmission electron microscopy (TEM)
  schema: not_defined
- subject: Crystal defects
  schema: not_defined
- subject: High-temperature deformation
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2022-01-04
end_date: 2024-01-04

## Journal

- title: Scripta Materialia
  issn: '13596462'
  volume: '210'
  article_number: '114487'

## Conference



## Related item



## Funding

- identifier: PA5180
  funder_name: NIMS
  description: セラミックスプロセッシング

## 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



## Energy level/transition state



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## Custom property



## Fileset

- id: 28a6ff3d-8491-440f-9e28-2c53792bea35
  filename: TEM_based_b4c_manuscript_ScriptaMater-2021-11-25.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 1172298
  md5: 41542577f8c5143dd11f8bccdac6bcce

## Thumbnail

fileset_id: 28a6ff3d-8491-440f-9e28-2c53792bea35
filename: TEM_based_b4c_manuscript_ScriptaMater-2021-11-25.docx