# Consolidation and high‐temperature strength of monolithic lanthanum hexaboride

https://mdr.nims.go.jp/datasets/329b719c-0045-4555-b2f6-97095edac483

## Files

- [JACERS-48624.R1-Proof-hi.pdf](https://mdr.nims.go.jp/filesets/8baba9ff-9f12-4373-a1a4-81bebd54f29c/download) ([Detail](https://mdr.nims.go.jp/filesets/8baba9ff-9f12-4373-a1a4-81bebd54f29c.md))

## Id

329b719c-0045-4555-b2f6-97095edac483

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-11-14T05:49:10.838341Z

## Updated at

2024-11-21T07:35:03.780827Z

## Published at

2024-11-21T07:35:03.897536Z

## Doi

https://doi.org/10.48505/nims.4977

## First published url

https://doi.org/10.1111/jace.18331

## Date published

2022-01-29

## Recorded date published

2022-6

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Consolidation and high‐temperature strength of monolithic lanthanum hexaboride
  title_type: original
  lang: en

## Description

- description: "In this study we explored the densification, microstructure evolution,
    and high-temperature properties of bulk lanthanum hexaboride. LaB6 bulks were
    consolidated using spark-plasma sintering only in the temperature range between
    1400◦C and 1700◦C.We adopted flash spark plasma sintering (SPS) of LaB6 using
    a direct current heating without a graphite die.We observed a peculiar grain-size
    gradient when coarse grains exceeding 300 μm were observed on the top side of
    the specimen, while the bottom side had a grain size of 15–20 μm. Such large grain
    was not observed using SPS at 2000◦C, suggesting that these might originate\r\nfrom
    a local overheating. Based on the three-point flexural tests, it was observed
    that the toughness and strength of the LaB6 were acceptable at room-temperature
    (3.1 ± 0.2 MPa m1/2, 300 ± 20 MPa). However, at 1600◦C, these parameters would
    decrease to 1.3 ± 0.1 MPa m1/2 and 120 ± 40 MPa, respectively."
  description_type: abstract
  lang: und

## Creator

- name: Dmytro Demirskyi
  role: author
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Tohru S. Suzuki
  role: author
  orcid: https://orcid.org/0000-0001-9458-6863
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Kyosuke Yoshimi
  role: author
- name: Oleg O. Vasylkiv
  role: author
  orcid: https://orcid.org/0000-0002-5041-6130
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: grain growth
  schema: not_defined
- subject: densification
  schema: not_defined
- subject: borides
  schema: not_defined
- subject: spark plasma sintering
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Journal of the American Ceramic Society
  issn: '15512916'
  volume: '105'
  issue: '6'
  start_page: 4277
  end_page: 4290

## Conference



## Related item



## Funding

- identifier: PA3030
  funder_name: NIMS
  description: "粉体・セラミックス\t結晶・界面の階層的構造制御による機能顕在化のための研究\t70"
- identifier: PA5180
  funder_name: NIMS
  description: "セラミックスプロセッシング\t-\t30\r\n"

## 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: 8baba9ff-9f12-4373-a1a4-81bebd54f29c
  filename: JACERS-48624.R1-Proof-hi.pdf
  content_type: application/pdf
  size: 6614308
  md5: 5adbf9c999d394fa6c0a0fe938c4e402

## Thumbnail

fileset_id: 8baba9ff-9f12-4373-a1a4-81bebd54f29c
filename: JACERS-48624.R1-Proof-hi.pdf