Dependence of LIBS spectra on the surface composition and morphology of W/Al coatings
Autor: | K. Piip, M. Aints, Jukka Kolehmainen, Hugo Mändar, Antti Hakola, Sanna Tervakangas, Indrek Jõgi, Cristian P. Lungu, Corneliu Porosnicu, Peeter Paris, Cristian Ruset, E. Grigore, Matti Laan, J. Kozlova |
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Rok vydání: | 2017 |
Předmět: |
Materials science
medicine.medical_treatment Analytical chemistry chemistry.chemical_element 01 natural sciences 010305 fluids & plasmas Crystallinity Aluminium 0103 physical sciences medicine surface morphology General Materials Science Laser-induced breakdown spectroscopy ta216 ta218 Civil and Structural Engineering ta212 laser induced breakdown spectroscopy (LIBS) diagnostics 010302 applied physics ta214 Laser ablation ta114 Mechanical Engineering Ablation Secondary ion mass spectrometry Nuclear Energy and Engineering chemistry sense organs Beryllium ITER relevant coatings ablation rate Order of magnitude |
Zdroj: | Fusion Engineering and Design Laan, M, Hakola, A, Paris, P, Piip, K, Aints, M, Jõgi, I, Kozlova, J, Mändar, H, Lungu, C, Porosnicu, C, Grigore, E, Ruset, C, Kolehmainen, J & Tervakangas, S 2017, ' Dependence of LIBS spectra on the surface composition and morphology of W/Al coatings ', Fusion Engineering and Design, vol. 121, pp. 296-300 . https://doi.org/10.1016/j.fusengdes.2017.03.173 |
ISSN: | 0920-3796 |
DOI: | 10.1016/j.fusengdes.2017.03.173 |
Popis: | Laser induced breakdown spectroscopy (LIBS) has been applied to study ITER-relevant coatings with different surface morphology and crystallinity. LIBS elemental depth profiles were compared with those obtained by secondary ion mass spectrometry (SIMS). Depending on surface morphology and crystallinity, the laser ablation rate of the coatings changed by an order of magnitude, the highest ablation rate had samples prepared by thermoionic vacuum discharge. The inclusion of aluminum (proxy for beryllium) increased the ablation rate by a factor of>6. In addition, for W-Al coatings the ablation was non-stoichiometric. |
Databáze: | OpenAIRE |
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