January 2018
Spotlight Summary by Pavel Pořízka and David W. Hahn
Laser-induced breakdown spectroscopy for three-dimensional elemental mapping of composite materials synthesized by additive technologies
3D multielemental mapping benefits from the full potential of the laser-induced breakdown spectroscopy (LIBS) technique. Obtained elemental maps provide alternative insight into the structure and composition of layered materials. Lednev et al. combine the advantages of LIBS in the depth-profiling study of materials synthesized by the additive technology coaxial laser cladding. The most essential part of additive production is the quality assessment, and LIBS provides a complementary way of analysis. In this work, the LIBS experiment was optimized in order to yield the highest possible performance in the profiling of tungsten-carbide-reinforced nickel alloy. Detection in the UV range enabled the qualitative analysis of carbon, in which detection is challenging with other analytical techniques. The resulting spatial distribution correlated with the distribution of tungsten, validating the quality and uniformity of the printed material. Spatial and depth resolution were on the micro-level, and thus the merit of this scientific work is on the edge of contemporary LIBS technology.
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Article Information
Laser-induced breakdown spectroscopy for three-dimensional elemental mapping of composite materials synthesized by additive technologies
V. N. Lednev, P. A. Sdvizhenskii, M. Ya. Grishin, V. V. Cheverikin, A. Ya. Stavertiy, R. S. Tretyakov, M. V. Taksanc, and S. M. Pershin
Appl. Opt. 56(35) 9698-9705 (2017) View: Abstract | HTML | PDF