Overcoming the performance ceiling of textured piezoelectric ceramics

• 成果类型: Article
• 署名作者: Zhang, Jinjing; Wang, Zidong; Yang, Shuai; Liu, Ruixuan; Chang, Jianglei; Wu, Haijun; Wang, Mingwen; Chen, Xiaoqing; Zhang, Yang; Zhou, Xianghong; Zhang, Chenbo; Daniels, John; Liu, Yuan-Jinsheng; Liu, Shi; Chang, Yunfei; Wang, Xianjie; Feng, Xinya; Li, Chunchun; Zhang, Nan; Li, Jinglei; Zhang, Shujun; Li, Fei
• 署名单位: Xi'an Jiaotong University; Xi'an Jiaotong University; Xi'an Jiaotong University; Xi'an Jiaotong University; Xi'an Jiaotong University; Tongji University; University of New South Wales Sydney; Westlake University; Harbin Institute of Technology; Harbin Institute of Technology; City University of Hong Kong
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-8075; 1095-9203
• DOI: 10.1126/science.aei0475
• 发表日期: 2026-08-13
• 页码: 719-726
• 关键词: FERROELECTRIC SINGLE-CRYSTALS; giant piezoelectricity; grain-growth; thin-films; PMN-PT; TITANATE; polarization; temperature; transitions; mechanism

摘要

Textured piezoelectric ceramics could deliver the ultrahigh piezoelectricity of single crystals while retaining the mechanical robustness and cost-effectiveness of conventional ceramics, but after decades of effort, their piezoelectricity has not approached that of single crystals. We exploited compositional flexibility of textured ceramics, a critical advantage over single-crystal counterparts, using a machine-learning approach. Our samarium (Sm)-doped Pb(In1/2Nb1/2)O3-Pb(Sc1/2Nb1/2)O3-PbTiO3 textured ceramics exhibited an ultrahigh piezoelectric coefficient (d33) of 1720 picocoulombs per newton and a Curie temperature of 250 degrees C. These values are comparable to, or even surpass, those of state-of-the-art single crystals. In situ x-ray diffraction and Rayleigh analysis indicate that their exceptional piezoelectricity is predominantly intrinsic rather than driven by domain switching. Leveraging these textured ceramics, we fabricated a piezoelectric accelerator that exhibits not only higher sensitivity but also substantially better reliability than its single-crystal counterparts.