Laser-induced nano-Ag/graphene composites for highly responsive flexible strain sensors

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing Pub Date : 2024-11-12 DOI:10.1016/j.compositesa.2024.108586

Shih-Feng Tseng , Han-Ting Tsai , Chang-Chun Lee , Chil-Chyuan Kuo

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Abstract

In this focused on laser-induced nano-Ag/graphene composites were evaluated as an electrode layer for highly responsive flexible strain sensors. The dimension of Ag nanoparticles was adjusted using potassium hydroxide (KOH) at different concentrations. Moreover, the characteristics of laser-induced nano-Ag/graphene composites were examined by scanning electron microscope, X-ray photoelectron spectroscopy, and X-ray diffraction. The performance of the proposed sensor was tested using a single-column universal test equipment combined with a precision electrical meter. The 6 M KOH nano-Ag/graphene-based strain sensor had large gauge factors of 23.1 under a micro-strain of 0.0042 % and 492.95 under a 16 % strain. Furthermore, the strain sensor under 10 cycles of stretching/releasing demonstrated excellent linearity, repeatability, and stability of response in different strain ranges of 1 % to 13 % at 2 % intervals. The sensor under 3 % and 5 % strain for 1000 cycles of stretching/releasing tests exhibited good stability and durability. The proposed sensor used to detect wind turbine blade deformation exhibited better response performance. The developed sensor holds a great application potential in real-time monitoring of the structural health of bridges and deformation of railway tracks, tracking human movement, identifying hill slides, assessing fatigue of mechanical components, etc.

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用于高响应柔性应变传感器的激光诱导纳米-Ag/石墨烯复合材料

本研究重点评估了激光诱导纳米银/石墨烯复合材料作为高响应柔性应变传感器电极层的性能。使用不同浓度的氢氧化钾（KOH）调整了银纳米粒子的尺寸。此外，还通过扫描电子显微镜、X 射线光电子能谱和 X 射线衍射检查了激光诱导的纳米银/石墨烯复合材料的特性。使用单柱通用测试设备和精密电表测试了拟议传感器的性能。基于 6 M KOH 纳米氧化铝/石墨烯的应变传感器在 0.0042 % 的微应变下具有 23.1 的高测量系数，在 16 % 的应变下具有 492.95 的测量系数。此外，应变传感器在 10 次拉伸/释放循环中，在 1 % 至 13 % 不同应变范围内，以 2 % 为间隔，均表现出卓越的线性、可重复性和响应稳定性。在拉伸/释放 1000 次循环测试中，传感器在 3 % 和 5 % 应变下表现出良好的稳定性和耐用性。用于检测风力涡轮机叶片变形的传感器具有更好的响应性能。所开发的传感器在实时监测桥梁结构健康和铁轨变形、跟踪人类运动、识别山体滑坡、评估机械部件疲劳等方面具有巨大的应用潜力。

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来源期刊

Composites Part A: Applied Science and Manufacturing 工程技术-材料科学：复合

CiteScore

15.20

自引率

5.70%

发文量

492

审稿时长

30 days

期刊介绍： Composites Part A: Applied Science and Manufacturing is a comprehensive journal that publishes original research papers, review articles, case studies, short communications, and letters covering various aspects of composite materials science and technology. This includes fibrous and particulate reinforcements in polymeric, metallic, and ceramic matrices, as well as 'natural' composites like wood and biological materials. The journal addresses topics such as properties, design, and manufacture of reinforcing fibers and particles, novel architectures and concepts, multifunctional composites, advancements in fabrication and processing, manufacturing science, process modeling, experimental mechanics, microstructural characterization, interfaces, prediction and measurement of mechanical, physical, and chemical behavior, and performance in service. Additionally, articles on economic and commercial aspects, design, and case studies are welcomed. All submissions undergo rigorous peer review to ensure they contribute significantly and innovatively, maintaining high standards for content and presentation. The editorial team aims to expedite the review process for prompt publication.