Laser surface roughening on copper analyzed using SEM-EDX


  • Mohd Zulfahmi Bahaudin Laser Centre, Ibnu Sina Institute for Scientific and Industrial Research (ISI-SIR), Faculty of Science, Universiti Teknologi Malaysia, 81310, Skudai,Johor, Malaysia.
  • Noriah Bidin Universiti Teknologi Malaysia
  • Hazri Bakhtiar Universiti Teknologi Malaysia



Microstructure, and chemical composition changes on the copper surface were investigated using SEM-EDX analysis. A Q-switched Nd:YAG laser was focused at laser energy of 224 mJ and 465 mJ to roughening the copper surface. The higher the laser energy were responsible for the increasing laser surface roughening process. The rapid heat and cooling process introduced a non-equilibrium condition causing changes in the microstructure as well as the chemical composition of the roughening copper surface. Therefore, the heavier the roughening effect will affect the advantage of adhesive bonding between copper surfaces.

Author Biographies

Noriah Bidin, Universiti Teknologi Malaysia

Laser Center

Hazri Bakhtiar, Universiti Teknologi Malaysia

Department of Physics


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