Open AccessLaser Induced Modifications of Carbon Nanotube Composite Surfaces
Author(s) -
A. Bassil,
P Puech,
Wolfgang Bacsa,
P.S. Pizani,
Renato Goulart Jasinevicius,
Ph. Demont,
Sophie Barrau,
C. Lacabanne,
Revathi Bacsa,
Emmanuel Flahaut
Publication year - 2006
Publication title -
japanese journal of applied physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 129
eISSN - 1347-4065
pISSN - 0021-4922
DOI - 10.1143/jjap.45.7776
Subject(s) - carbon nanotube , materials science , composite material , surface roughness , raman spectroscopy , composite number , laser ablation , nanocomposite , diamond , laser , carbon nanotube metal matrix composites , surface modification , nanotube , machining , surface finish , laser power scaling , optics , chemical engineering , physics , engineering , metallurgy
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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