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In this study, flash joining experiments were conducted using an AC field on 3 mol% Y2O3-stabilized tetragonal ZrO2 polycrystal (Y-TZP) bodies. Furthermore, the necessary conditions to obtain an almost complete self-joining of Y-TZP bodies were clarified. The specimens were successfully joined by applying an AC field at 60 mA mm−2 for 80 s at a furnace temperature of 1000°C, thus resulting in a successfully joined specimen with 92% of the flexural strength of the as-sintered Y-TZP body. Almost complete self-joining of Y-TZP was achieved at current densities above 30 mA mm−2, and input energy densities of >24 J mm−3. Both the input energy density and electric current were critical factors for producing the reliable joining of ceramics.

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• In Copyright
  This is the pre-peer reviewed version of the following article: Nambu K, Kitaoka T, Morita K, Soga K, Tokunaga T, Yamamoto T, et al. Flash self-joining of Y-TZP ceramics assisted with an AC electric field. J Am Ceram Soc. 2023; 106: 2073–2082, which has been published in final form at https://doi.org/10.1111/jace.18889. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.

Keyword: joining, current effect, zirconia, fracture strength

Date published: 2022-11-22

Publisher: Wiley

Journal:

• Journal of the American Ceramic Society (ISSN: 15512916) vol. 106 issue. 3 p. 2073-2082

Funding:

• JST JPMJCR1996
• JSPS 17H03394
• JSPS 19H05792

Manuscript type: Author's original (Submitted manuscript)

MDR DOI: https://doi.org/10.48505/nims.4925

First published URL: https://doi.org/10.1111/jace.18889

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Updated at: 2024-11-06 16:30:53 +0900

Published on MDR: 2024-11-06 16:30:53 +0900