# Deformation-resistant multipurpose ultra-high temperature ceramics with superior hardness, toughness, and flexural strength

https://mdr.nims.go.jp/datasets/2b05822b-0b9d-443d-bf50-f78c087d61b5

## File

- [15F-T14-05_PM2024.pdf](https://mdr.nims.go.jp/filesets/6745ba7d-3901-47e6-996a-dab784092393/download) ([Detail](https://mdr.nims.go.jp/filesets/6745ba7d-3901-47e6-996a-dab784092393.md))

## Id

2b05822b-0b9d-443d-bf50-f78c087d61b5

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-09-30T06:36:02.416939Z

## Updated at

2024-11-21T07:35:37.867689Z

## Published at

2024-11-21T07:35:37.927224Z

## Doi

https://doi.org/10.48505/nims.4980

## First published url



## Date published



## Recorded date published



## Resource type

conference_presentation

## Manuscript type

na

## Collection



## Title

- title: Deformation-resistant multipurpose ultra-high temperature ceramics with superior
    hardness, toughness, and flexural strength
  title_type: original
  lang: en

## Description

- description: The request for new multipurpose ultra-high temperature transition-metal
    carbide and boride ceramics causes the worldwide demand for a new class of composites
    with sufficient balance of high toughness, hardness, and superior flexural strength
    up to 2000°C. Deformation resistivity of reaction-driven SPSed boron carbide,
    TiB2 with stiff skeleton of B4C, Ta0.2Hf0.8C, Zr-Ta boride composite with artificially
    created hierarchical superstructure, tantalum mono-boride, medium-entropy Zr-Ta-Nb
    diboride, and TaB2-ZrB2-TiB2-HfB2 to be addressed. With RT to 1800 °C mean strength
    of 650 MPa, boron carbide exhibits ultrahigh flexural strength far exceeding 1000
    MPa accompanied by a change in the deformation mechanism from brittle fracture
    to plastic deformation at 2000 °C. Ultra-strength of boron carbide through the
    mechanism of ultra-high temperature flexure & strain-driven amorphization to be
    discussed.
  description_type: abstract
  lang: eng

## Creator

- name: VASYLKIV Oleg
  role: author
  orcid: https://orcid.org/0000-0002-5041-6130
  organization: National Institute for Materials Science
  department: Research Center for Electronic and Optical Materials/Optical Materials
    Field/Polycrystalline Optical Material Group
  ror: https://ror.org/026v1ze26

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## Keyword

- subject: Deformation-resistant ceramic
  schema: not_defined
- subject: UHTC
  schema: not_defined
- subject: Mechanical properties
  schema: not_defined

## Rights

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

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## Data origin

- data_origin_type: other

## Embargo



## Journal



## Conference

name: World PM2024 Powder Metallurgy World Congress & Exhibition
start_date: 2024-10-13
end_date: 2024-10-17
identifier: https://www.worldpm2024.com/

## Related item



## Funding

- identifier: AB3080
  funder_name: NIMS
  description: "多結晶光学材料\t革新的光材料創出のための基盤研究"
- identifier: 24K08035
  funder_name: JSPS
  description: KAKENHI  非晶質相形成による超高温セラミックスの高機能化に向けたマルチスケール研究

## 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: 6745ba7d-3901-47e6-996a-dab784092393
  filename: 15F-T14-05_PM2024.pdf
  content_type: application/pdf
  size: 9380180
  md5: 7f652c96441fd5d9d308e8b07327eec8

## Thumbnail

fileset_id: 6745ba7d-3901-47e6-996a-dab784092393
filename: 15F-T14-05_PM2024.pdf