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IF 6.5 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composites Communications Pub Date : 2025-03-21 DOI:10.1016/j.coco.2025.102371

Xueping Xu , Weiwei Wu , Tao Zhu , Menghan Pei , Xiaoyan Zhang , Qinkai Han

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引用次数: 0

摘要

基于压电宏纤维复合材料（MFC）的压电层和铁基非晶或纳米晶合金的磁致伸缩层，一种柔性层叠磁电复合材料磁场传感器实现了超高灵敏度和超弱磁场检测。损耗较低的非晶合金磁电传感器（ME-A）具有响应电压。ME-A 样品的最佳直流偏置磁场为 5.04 Oe，对应的磁电电压系数为 18.30 V/(cm‧Oe)。此外，在 20.50 kHz 的最佳频率下，ME-A 传感器对低至 1.90 × 10-5 Oe 的超弱交流磁场具有出色的线性响应特性，灵敏度高达 542 mV/Oe。具体来说，ME-A 样品可实时感应阶跃磁场变化，检测分辨率低至 1.54 × 10-5 Oe。ME-A 传感器能成功检测到不同速度电机产生的低于 1.0 × 10-3 Oe 的杂散磁场。总体而言，ME-A 叠层结构磁电复合材料具有优异的磁电特性，可实现超弱磁场检测，成为新一代柔性磁场传感器。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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High-performance magnetoelectric composite with low DC bias magnetic field for detecting ultra-weak magnetic field

Based on a piezoelectric layer of piezoelectric macro fiber composite (MFC) and a magnetostrictive layer of iron-based amorphous or nanocrystalline alloy, a flexible laminated magnetoelectric composite magnetic field sensor has achieved ultra-high sensitivity and the detection of ultra-weak magnetic fields. The magnetoelectric sensor of amorphous alloy with lower loss (ME-A) exhibits a response voltage. The ME-A sample's optimal DC bias magnetic field has a small value of 5.04 Oe, corresponding to the magnetoelectric voltage coefficient of 18.30 V/(cm‧Oe). In addition, the ME-A sensor exhibits excellent linear response characteristics to ultra-weak AC magnetic field as low as 1.90 × 10⁻⁵ Oe at the optimal frequency of 20.50 kHz, with a sensitivity of up to 542 mV/Oe. Specifically, the ME-A sample provides real-time sensing of stepped magnetic field changes, achieving a detection resolution as low as 1.54 × 10⁻⁵ Oe. The ME-A sensor successfully detects stray magnetic fields below 1.0 × 10⁻³ Oe generated by motors at different speeds. Overall, ME-A laminated structure magnetoelectric composite with excellent magnetoelectric properties can achieve ultra-weak magnetic field detection and become a new generation of flexible magnetic field sensors.

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来源期刊

Composites Communications Materials Science-Ceramics and Composites

CiteScore

12.10

自引率

10.00%

发文量

340

审稿时长

36 days

期刊介绍： Composites Communications (Compos. Commun.) is a peer-reviewed journal publishing short communications and letters on the latest advances in composites science and technology. With a rapid review and publication process, its goal is to disseminate new knowledge promptly within the composites community. The journal welcomes manuscripts presenting creative concepts and new findings in design, state-of-the-art approaches in processing, synthesis, characterization, and mechanics modeling. In addition to traditional fiber-/particulate-reinforced engineering composites, it encourages submissions on composites with exceptional physical, mechanical, and fracture properties, as well as those with unique functions and significant application potential. This includes biomimetic and bio-inspired composites for biomedical applications, functional nano-composites for thermal management and energy applications, and composites designed for extreme service environments.