# Deformation-resistant UHTC composites with superior hardness, toughness, and flexural strength up to 2000°C

https://mdr.nims.go.jp/datasets/fe89852e-3a93-4906-ab87-4dce8ef264cd

## File

- [GrandMeeting_Abstract_VASYLKIV O.pdf](https://mdr.nims.go.jp/filesets/538f688f-84b7-469c-b540-6f04476b2546/download) ([Detail](https://mdr.nims.go.jp/filesets/538f688f-84b7-469c-b540-6f04476b2546.md))

## Id

fe89852e-3a93-4906-ab87-4dce8ef264cd

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-11-14T05:01:46.061315Z

## Updated at

2024-11-15T23:30:48.285359Z

## Published at

2024-11-15T23:30:48.355043Z

## Doi

https://doi.org/10.48505/nims.4966

## First published url



## Date published



## Recorded date published



## Resource type

conference_presentation

## Manuscript type

na

## Collection



## Title

- title: Deformation-resistant UHTC composites with superior hardness, toughness,
    and flexural strength up to 2000°C
  title_type: original
  lang: en

## Description

- description: "The request for new multipurpose deformation-resistant ultra-high
    temperature ceramics (UHTC), able to act as engine and vehicle protection, ceramic
    segmented leading edge components for aerospace, plasma-facing, ceramic parts
    for solar towers used for gas turbine operation in a combined cycle power plants
    cause the worldwide demand in a new class of ceramic composites of incredible
    high strength, a sufficient balance between high toughness & hardness. \r\nConfirmed
    room to ultrahigh temperature deformation resistivity of reaction-driven SPSed
    (RD-SPS) boron carbide, TiB2 with stiff skeleton of B4C, Zr-Ta boride composite
    with the artificially created hierarchical superstructure, TaB, and high-entropy
    TaB2-ZrB2-TiB2-HfB2 to be addressed. SPSed TiB-B4C exhibits a mean flexural strength
    of 1000 MPa for up to 1800 °С, further increasing to 1760 MPa at 2000 °C. Same
    as above, the ultrahard, tough, deformation-resistant Ta monoboride (Scripta Materialia
    229 May (2023) 115383), Zr-Ta multiboride, Zr-Ta-Nb diboride, and high-entropy
    TaB2-ZrB2-TiB2-HfB2 with an average flexural strength of 400 MPa of up to 2000
    °С are the new multipurpose deformation-resistant ceramics with wide range of
    possible applications.\r\n"
  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

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## Keyword

- subject: UHTC
  schema: not_defined
- subject: SPS
  schema: not_defined
- subject: Strength
  schema: not_defined
- subject: Hardness
  schema: not_defined
- subject: Toughness
  schema: not_defined
- subject: Deformation Resistance
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal



## Conference

name: Advanced Materials Research Grand Meeting （MRM2023 IUMRS-ICA2023）
start_date: 2023-12-11
end_date: 2023-12-16
identifier: https://mrm2023.jmru.org/

## Related item



## Funding

- identifier: AB3080
  funder_name: NIMS
  description: "多結晶光学材料\tResearch toward Innovative Optical Materials"

## 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: 538f688f-84b7-469c-b540-6f04476b2546
  filename: GrandMeeting_Abstract_VASYLKIV O.pdf
  content_type: application/pdf
  size: 418154
  md5: b20f6077cda9b2e113887d53612f3b7d

## Thumbnail

fileset_id: 538f688f-84b7-469c-b540-6f04476b2546
filename: GrandMeeting_Abstract_VASYLKIV O.pdf