Research PapersNo Access

The optimization of electrospray process based on auxiliary electrode

Y. F. Liu

School of Aerospace Engineering, Xiamen University, Xiamen 361005, China

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Y. Zhang

School of Aerospace Engineering, Xiamen University, Xiamen 361005, China

E-mail Address: zhangyao@stu.xmu.edu.cn

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T. T. Dai

School of Aerospace Engineering, Xiamen University, Xiamen 361005, China

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, and

T. P. Lei

College of Mechanical Engineering and Automation, Huaqiao University, Xiamen 361021, China

E-mail Address: tplei@hqu.edu.cn

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https://doi.org/10.1142/S0217984918503645Cited by:0 (Source: Crossref)

Abstract

In order to control the charged jet and deposition area of the glass frit in the electrostatic spray system, the nozzles with/without sleeve-type auxiliary electrode are comparatively studied through simulations and experiments. The influence of the voltage applied on the auxiliary electrode and its diameter is analyzed. According to the vector diagram and the distribution of electric field intensity, the optimal values for the applied voltage and the diameter of the auxiliary electrode are determined for the present work, i.e. 1.5 kV and 6 mm, respectively. The experimental results further demonstrate the nozzle with the auxiliary electrode is much better than the one without the electrode, and under the above optimized condition the charged jet can be well controlled to deposit glass frit film on silicon wafer with a line width of 330 μm, which is much more narrow than the conventional nozzle (without the electrode). This work will offer another good way for better control of the deposition during electrostatic spray process.

Keywords:

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