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Study of drop-on-demand printing through multi-step pulse voltage

  • Khalid Rahman
  • Arshad Khan
  • Nguyen Minh Nam
  • Kyung Hyun ChoiEmail author
  • Dong-Soo Kim
Article

Abstract

This paper presents study of the Electrohydrodynamic Drop-on-Demand (DOD) phenomena by applying the multi-step pulse voltage. The multi-step voltage was generated through the high voltage power source connected with pulse generator. A DOD phenomenon was observed with the help of high speed camera. For study purpose the experiments were performed on ethanol by changing the operating parameters such as multi-step pulsed voltage, frequency of applied pulsed voltage and flow-rate. For DOD printing purpose conductive ink is used and patterns were made on the glass substrate and analyzed on different operating conditions. The minimum droplet diameter of approximately 40μm at 325Hz frequency was achieved on the glass substrate. The printed pattern exhibited the linear ohmic behavior and pattern material is characterized through XRD. This study will help in better understanding of the Electrohydrodynamic DOD phenomena for the printing purpose.

Keywords

Electrohydrodynamic Drop-on Demand Multi-step voltage 

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Copyright information

© Korean Society for Precision Engineering and Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Khalid Rahman
    • 1
  • Arshad Khan
    • 1
  • Nguyen Minh Nam
    • 1
  • Kyung Hyun Choi
    • 1
    Email author
  • Dong-Soo Kim
    • 2
  1. 1.Department of Mechatronics EngineeringJeju National UniversityJeju Special Self-Governing ProvinceKorea
  2. 2.Nano-Mechatronics DivisionKorean Institute of Machinery and MaterialsDaejeonKorea

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