Bassil, Ayman and Puech, Pascal and Bacsa, Wolfgang and Pizani, Paulo Sérgio and Jasinevicius, Renato Goulart and Demont, Philippe and Barrau, Sophie and Lacabanne, Colette and Bacsa, Revathi and Flahaut, Emmanuel Laser Induced Modifications of Carbon Nanotube Composite Surfaces. (2006) Japanese Journal of Applied Physics, vol. 45 . pp. 7776-7779. ISSN 0021-4922
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Official URL: http://dx.doi.org/10.1143/JJAP.45.7776
Carbon nanotubes epoxy composites have been processed with high power laser pulses and micro-machined with a single crystal diamond tool. The effect of the dispersion of the carbon nanotubes (CNTs, 0.4 wt %) in the epoxy resin and carbon nanotube interaction with the composite matrix have been probed using spectroscopic Raman mapping. While the micromachined surface maintains a good electrical conductivity after machining, the surface is poorly conductive after laser ablation. Laser processing (power 150 J/pulse, 1064 nm) transforms the surface of the carbon nanotube nanocomposite up to a distance of 25 mm. AFM images show that the diamond machined surface reduces the composite surface roughness.
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