Abstract
The zirconia ceramic was flash joined in 1 s by applying an electric field. The joining was performed at temperatures as low as 600 °C, with a joint three-point bend strength of ca. 418 MPa and a smaller grain size than that of the parent material. The joining strength was further enhanced with the increase in bonding temperature, reaching ca. 595 MPa at 900 °C. Ultrafast superplastic deformation of the ceramic under the applied electric field and the subsequent accelerated mass transport are proposed as the underlying mechanism for flash joining.
| Original language | English |
|---|---|
| Pages (from-to) | 34-38 |
| Number of pages | 5 |
| Journal | Scripta Materialia |
| Volume | 165 |
| DOIs | |
| Publication status | Published - May 2019 |
Keywords
- Field assist
- Flash joining
- Superplastic deformation
- Threshold current density
- Zirconia
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Xia, J., Ren, K., & Wang, Y. (2019). One-second flash joining of zirconia ceramic by an electric field at low temperatures. Scripta Materialia, 165, 34-38. https://doi.org/10.1016/j.scriptamat.2019.02.004