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This study investigated the high-temperature strength of spark plasma sintered tantalum diboride (TaB2) for the first time. TaB2 exhibited a unique elastic fracture behavior below 1900°C, unlike other transition metal diborides. The consolidation process involved spark plasma sintering at 2000–2200°C yielding dense TaB2 samples. The flexural strength was measured at elevated temperatures up to 2000°C, showing a quite high flexural strength of 400±20 MPa at 1900°C. These findings provide valuable insights into the high-temperature behavior of TaB2, highlighting its potential for advanced applications.

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  This is the peer reviewed version of the following article: Vasylkiv O, Demirskyi D. High-temperature strength behavior of tantalum diboride to 2000°C. J Am Ceram Soc. 2023; 106: 6385–6389, which has been published in final form at https://doi.org/10.1111/jace.19307. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.

Keyword: Strength, ultra-high temperature ceramics, spark plasma sintering

Date published: 2023-07-11

Publisher: Wiley

Journal:

• Journal of the American Ceramic Society (ISSN: 15512916) vol. 106 issue. 11 p. 6385-6389

Funding:

• NIMS AB3080

Manuscript type: Author's version (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.4951

First published URL: https://doi.org/10.1111/jace.19307

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Updated at: 2024-11-13 16:30:14 +0900

Published on MDR: 2024-11-13 16:30:16 +0900