Version 1
: Received: 20 July 2023 / Approved: 20 July 2023 / Online: 20 July 2023 (05:45:42 CEST)
How to cite:
Wang, K.; Zu, Y.; Chen, G.; Fu, X.; Zhou, W. Effects of the Electric Current on the Superplastic Behavior of 3Y-TZP in Oxygen-Lean Atmosphere. Preprints2023, 2023071382. https://doi.org/10.20944/preprints202307.1382.v1
Wang, K.; Zu, Y.; Chen, G.; Fu, X.; Zhou, W. Effects of the Electric Current on the Superplastic Behavior of 3Y-TZP in Oxygen-Lean Atmosphere. Preprints 2023, 2023071382. https://doi.org/10.20944/preprints202307.1382.v1
Wang, K.; Zu, Y.; Chen, G.; Fu, X.; Zhou, W. Effects of the Electric Current on the Superplastic Behavior of 3Y-TZP in Oxygen-Lean Atmosphere. Preprints2023, 2023071382. https://doi.org/10.20944/preprints202307.1382.v1
APA Style
Wang, K., Zu, Y., Chen, G., Fu, X., & Zhou, W. (2023). Effects of the Electric Current on the Superplastic Behavior of 3Y-TZP in Oxygen-Lean Atmosphere. Preprints. https://doi.org/10.20944/preprints202307.1382.v1
Chicago/Turabian Style
Wang, K., Xuesong Fu and Wenlong Zhou. 2023 "Effects of the Electric Current on the Superplastic Behavior of 3Y-TZP in Oxygen-Lean Atmosphere" Preprints. https://doi.org/10.20944/preprints202307.1382.v1
Abstract
The plastic deformation behavior of 3Y-TZP with weak electric current in oxygen-lean atmosphere was investigated. An electrochemical reduction reaction, induced by the electric current, can significantly promote the plastic deformation of 3Y-TZP at furnace temperature of 1200 °C and a strain rate of 6.67 × 10−4 s−1. Especially, a remarkable variation of the electrical property and grain growth were observed in 3Y-TZP during the deformation. The stress exponent ranging within 2~3 indicated that the deformation was dominated by grain boundary sliding. The applied electric current decreased the apparent activation energy Q of the deformation from 465 kJ mol-1 to 315 kJ mol-1, resulting in a transition of the diffusion mechanism from the lattice diffusion to the grain boundary diffusion. These phenomena were mainly attributed to the enhancement of the cation diffusion caused by the electrochemical reduction reaction, which induced by the electric current in oxygen-lean atmosphere.
Keywords
3Y-TZP ceramic; electric current; superplastic deformation; electrochemical reduction reaction
Subject
Chemistry and Materials Science, Ceramics and Composites
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
