Journal
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE
Volume 232, Issue 14, Pages 2533-2546Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/0954405417703426
Keywords
Multi-walled carbon nanotube; nanocomposite; laser drilling; heat-affected zone; taper angle; surface roughness; scanning acoustic microscopy; Field emission scanning electron microscope; energy dispersive X-ray analysis
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In this work, the influence of multi-walled carbon nanotube is presented on laser drilling of multi-walled carbon nanotube-doped glass/epoxy polymeric nanocomposite. Multi-walled carbon nanotubes were dispersed in polymer matrix to improve the thermal conductivity and heat transfer characteristics of materials, which also reduces the divergence in decomposition temperature of matrix and glass fiber. Effect of carbon nanotube on laser drilling-induced damages was assessed by considering heat-affected zone, taper angle, and surface roughness as output parameters. Scanning acoustic microscopy showed the useful technique to examine the laser drilling damage around the hole by providing ply-by-ply damage analysis. In addition, scanning electron microscope provided more details to better analyze the machining quality of laser-drilled hole. Energy dispersive X-ray analysis provided the elemental analysis of charred material which is deposited on the hole wall. Obtained results indicate that the quality of hole was improved significantly due to addition of multi-walled carbon nanotube in polymer matrix.
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