Laser Welding of Polymer Foils with Gold Nanoparticles as Optical Absorber
Authors: Neuber, Matthias; Heilmann, Andreas
Source: Advanced Science Letters, Volume 4, Numbers 11-12, November 2011 , pp. 3596-3598(3)
Publisher: American Scientific Publishers
Abstract:Gold nanoparticles were used as absorber material for laser welding of transparent ethylene tetrafluoroethylene (ETFE) polymer foils. The gold nanoparticles were deposited by magnetron sputtering and covered with a thin plasma polymer film to stabilize their mechanical properties. After joining the coated foil with an uncoated ETFE foil, Laser irradiation was performed by a defocused continuous wave diode laser at a wavelength of 808 nm. During the laser irradiation, the gold nanoparticle change their size and shape by coalescence and melting and the welding seam becomes transparent. Particles size and shape were determined by transmission electron microscopy (TEM) and correlated with the optical spectra. Mechanical tensile tests have shown that the tensile strength of the laser welding seams are comparable to conventional welding seams made by thermal contact welding.
Document Type: Research Article
Publication date: 2011-11-01
- ADVANCED SCIENCE LETTERS is an international peer-reviewed journal with a very wide-ranging coverage, consolidates research activities in all areas of (1) Physical Sciences, (2) Biological Sciences, (3) Mathematical Sciences, (4) Engineering, (5) Computer and Information Sciences, and (6) Geosciences to publish original short communications, full research papers and timely brief (mini) reviews with authors photo and biography encompassing the basic and applied research and current developments in educational aspects of these scientific areas.
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