Journal of Advanced Dielectrics, Volume. 12, Issue 5, 2250015(2022)
A design for preparation of textured piezoelectric ceramics based on the phase-field simulation
To solve the problem of directional arrangement of small template particles, we designed a lamination technique for the preparation of dense ceramics with high texture degree based on the phase-field simulation. Referring to the experimental data, the initial microstructures of the template and matrix layers were constructed. The effect of the average length of template on the coarsening behavior of the template layer was investigated in detail. The results suggested that there was a stable stage in the growth process of template grains, which would be conducive to the densification of textured ceramics. This phenomenon has been confirmed by corresponding experiments. In addition, we demonstrated a critical thickness of matrix layer for the preparation of highly textured ceramics by using the template with various average lengths. The grain size of highly textured ceramics could be controlled by adjusting the template size and thickness of matrix layer.To solve the problem of directional arrangement of small template particles, we designed a lamination technique for the preparation of dense ceramics with high texture degree based on the phase-field simulation. Referring to the experimental data, the initial microstructures of the template and matrix layers were constructed. The effect of the average length of template on the coarsening behavior of the template layer was investigated in detail. The results suggested that there was a stable stage in the growth process of template grains, which would be conducive to the densification of textured ceramics. This phenomenon has been confirmed by corresponding experiments. In addition, we demonstrated a critical thickness of matrix layer for the preparation of highly textured ceramics by using the template with various average lengths. The grain size of highly textured ceramics could be controlled by adjusting the template size and thickness of matrix layer.
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Yongmei Zhang, Liangliang Liu. A design for preparation of textured piezoelectric ceramics based on the phase-field simulation[J]. Journal of Advanced Dielectrics, 2022, 12(5): 2250015
Category: Research Articles
Received: Aug. 1, 2022
Accepted: Aug. 19, 2022
Published Online: Dec. 5, 2022
The Author Email: Liu Liangliang (liuliangliang@tyut.edu.cn)