# Fracture peculiarities and high-temperature strength of bulk polycrystalline boron

https://mdr.nims.go.jp/datasets/62548e18-e5b0-4d57-8523-0f2f38026389

## File

- [MTLA-D-21-00345-R1.pdf](https://mdr.nims.go.jp/filesets/fe0936da-05f8-4a59-b8ef-f065f45a76c4/download) ([Detail](https://mdr.nims.go.jp/filesets/fe0936da-05f8-4a59-b8ef-f065f45a76c4.md))

## Id

62548e18-e5b0-4d57-8523-0f2f38026389

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-11-14T05:55:35.905048Z

## Updated at

2024-11-21T07:31:38.383432Z

## Published at

2024-11-21T07:31:38.442881Z

## Doi

https://doi.org/10.48505/nims.4970

## First published url

https://doi.org/10.1016/j.mtla.2022.101346

## Date published

2022-01-24

## Recorded date published

2022-3

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Fracture peculiarities and high-temperature strength of bulk polycrystalline
    boron
  title_type: original
  lang: en

## Description

- description: "We report the mechanical behavior of a bulk boron ceramic prepared
    by spark plasma sintering of commercially-available β-boron powder. In order to
    fabricate polycrystalline boron ceramic, we used a protective tantalum foil reacted
    with carbon from the graphite die or graphite foil forming a thin layer of TaB2
    and TaC covering the boron specimen. This is the first study to show the high-temperature
    flexural strength, toughness, and Young's moduli of boron up to 1400°C. At 1600°C
    and above, boron will react with testing environment forming an outer shell. \r\nThe
    flexural strength and fracture toughness at room temperature reached an average
    of 340 MPa and 4.1 MPa m1/2, respectively. Despite showing clear signs of plastic
    deformation on the strain-stress curves, the yield strength of the monolithic
    boron ceramic exceed 1 GPa at 1200°C. It was determined that fracture at elevated
    temperatures follows a quasi-transgranular mechanism, where the sub-grains of
    the boron fracture as plate-like structures. An interpretation for the observed
    fracture behavior was proposed."
  description_type: abstract
  lang: und

## Creator

- name: D. Demirskyi
  role: author
  organization: National Institute for Materials Science
- name: P. Badica
  role: author
- name: A. Kuncser
  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
  schema: not_defined
- subject: polycrystalline ceramic
  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: 2022-01-24
end_date: 2024-01-24

## Journal

- title: Materialia
  issn: '25891529'
  volume: '21'
  article_number: '101346'

## 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



## Software



## Custom property



## Fileset

- id: fe0936da-05f8-4a59-b8ef-f065f45a76c4
  filename: MTLA-D-21-00345-R1.pdf
  content_type: application/pdf
  size: 9634338
  md5: dfd11daf2a15a7de975e09ae1dd00d21

## Thumbnail

fileset_id: fe0936da-05f8-4a59-b8ef-f065f45a76c4
filename: MTLA-D-21-00345-R1.pdf