Journal
CERAMICS INTERNATIONAL
Volume 48, Issue 16, Pages 23767-23776Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2022.05.030
Keywords
Phase field simulation; Anisotropy; Grain growth; Grain boundary energy; Ferroelectric ceramics
Categories
Funding
- National Natural Science Foundation of China [52102138]
- Fundamental Research Program of Shanxi Province [202103021224080]
Ask authors/readers for more resources
This study investigated the effects of the anisotropy of grain boundary energy on the grain growth behavior and formation of characteristic regions in ferroelectric ceramics. By developing a phase-field model, the simulation results were confirmed by experimental data. The research provides a basis for microstructure control and the stable preparation of high-performance ferroelectric ceramics.
The grain growth behavior of ferroelectric ceramics is different from that under the condition of an isotropic grain boundary energy, owing to the existence of many high-energy grain boundaries. A simple phase-field model based on the anisotropy of the grain boundary energy was developed to simulate the microstructure evolution of ferroelectric ceramics. The effects of the anisotropy of the grain boundary energy on the grain growth behavior and formation of characteristic regions were investigated using the phase-field method. The experimental data confirmed the simulation results. It was observed that the rapid migration of high-energy grain boundaries and slow migration of low-energy grain boundaries resulted in the appearance of both, small grains with edge numbers greater than six and numerous strip grains. The grain microstructures showed a specific orientation distribution in the 2-D cross section. The anisotropy of grain boundary energy can regulate the grain orientation distribution. This work provides a basis for microstructure control and the stable preparation of highperformance ferroelectric ceramics.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available