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在 (1-0) - 3 单晶复合材料中的双平电荷策略,用于增强水下声学传感

Yu Lei^1,2, Xiaotian Li³, Zewei Hou^1,4

¹School of Aerospace Engineering, Beijing Institute of Technology, Beijing, 100081, People's Republic of China.

Nano-micro letters

|February 28, 2026

概括

研究人员开发了一种新的 (1-0) - 3单晶压晶复合材料 (SCPC) 具有双压晶充电机制,显著提高了声敏度和水静态功能的数字,用于先进的压电超声传感器 (PUT).

科学领域:

材料科学材料科学材料科学
声学声学在声学方面
固态物理固态物理

背景情况:

用于压电超声波传感器 (PUT) 的传统1-3型压电复合材料已经达到性能高峰.
现有的结构限制了声敏度和水静态功率 (d_hg_h) 的增强.

研究的目的:

开发一种具有增强压电性能的新型单晶压电复合材料 (SCPC).
引入双片充电 (DPC) 机制,以提高 PUT 的性能.
为了实现显著提高声敏度和水静态值的数字.

主要方法:

使用以[011]为导向的Pb(In_1/2Nb_1/2) O₃-Pb(Mg_1/3Nb_2/3) O₃-PbTiO₃ (PIN-PMN-PT) 单晶的方法制造一个 (1-0) - 3 SCPC.
在1相压柱中引入有序的,极性0相微孔,以创建DPC效应.
利用模拟和实验验证来评估性能.

主要成果:

实现了8089 × 10-15 m2 N-1的超高d_hg_h,比商业 1-3 SCPC增加了443.2%.
与1-3个陶复合材料相比,d_hg_h的改善率达到了890.6%.
显著提高了水下声学灵敏度,带宽为130kHz的宽-3dB带宽.
通过长期测试验证了运行稳定性.

结论:

具有DPC机制的新型 (1-0) - 3 SCPC 与传统压复合材料相比提供了显著的进步.
这种设计方法使下一代的PUT具有卓越的声学性能.
增强的性能对于海上安全和避免碰撞的应用至关重要.

关键词:

(10) 3 单晶压复合材料声学敏感性声学敏感性双片子充电机制双片子充电机制优点的水静态数字.压电超声波传感器压电超声波传感器

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