TY  - JOUR
AU  - Xia, Chenhe
AU  - Feng, Xiaoying
AU  - Xu, Jie
AU  - Wei, Ziyao
AU  - Zheng, Mupeng
AU  - Hou, Yudong
AU  - Gao, Feng
PY  - 2026
TI  - Achieving enhanced piezoelectric performance in three-dimensional interconnected BCZT piezoelectric porous ceramics
JO  - Journal of Materiomics
SN  - 2352-8478
VL  - 12
IS  - 3
AB  - Piezoelectric ceramics are widely used in the field of sensors due to their ability to sensitively respond to minor stimuli. (Ba0.85Ca0.15)(Zr0.1Ti0.9)O3 (BCZT) piezoelectric ceramics have attracted extensive attention in the sensing field due to their high piezoelectric charge coefficient (d33). However, the strong coupling between d33 and the dielectric constant (εr) can degrade the sensing performance. In this study, BCZT porous ceramics with three-dimensionally interconnected pore structure were fabricated using the foam-gelcasting method. The introduction of pores leads to a simultaneous decrease in both d33 and εr. Due to the greater reduction in εr, the piezoelectric voltage coefficient (g33) has an upward trend, achieving the decoupling of the d33 and εr. The piezoelectric voltage coefficient reached 181 × 10−3 V·m·N−1, the with sensitivity of 56.1 V/kPa and the response time of 0.27 s, respectively. This research provides a widely applicable alternative porous material for piezoelectric sensors.
UR  - https://doi.org/10.1016/j.jmat.2026.101183
DO  - 10.1016/j.jmat.2026.101183