Failure Mechanism Analysis of Silver Nanowires in Electrochemical Micromachining

4th International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Wu, Xiujuan^1 ; Li, Qintao^1 ; Wang, Yanyan^2 ; Li, Kang^1

School of Mechanical Engineering, Nanjing Institute of Industry Technology, Nanjing, Jiangsu

210023, China^1

School of Electrical Engineering, Nanjing Institute of Industry Technology, Nanjing, Jiangsu

210023, China^2

关键词: Dilute sulfuric acid;    Electrochemical micro-machining;    Failure mechanism;    Large aspect ratio;    Nano-electrodes;    Protective measures;    Silver nanowires;    Temperature rise;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/237/6/062011/pdf
DOI  :  10.1088/1755-1315/237/6/062011

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Silver nanowires are an ideal type of nano-electrode for electrochemical micromachining due to their large aspect ratio and good conductivity. In this paper, self-assembled silver nanowires electrode are used as the tool electrode for electrochemical micromachining. It shows that the silver nanowires fail in electrochemical micromachining. The failure mechanism is researched by computer simulation and experimentation. And the results show that the silver nanowires dissolve on account of the temperature rise when the temperature exceed the melting point of Ga. In addition, the chemical reaction of the silver nanowire in dilute sulfuric acid solution accelerates, intensifying the dissolution of the silver nanowire. Results indicate that the silver nanowire electrode is not suitable for electrochemical micromachining directly. Then, some protective measures should be taken for silver nanowire when it is used as tool electrode in electrochemical micromachining.