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@article{1335845, author = {Pořízka, Pavel and Ročňáková, Ivana and Klus, Jakub and Prochazka, David and Sládková, Lucia and Šperka, Pavel and Spotz, Zdeněk and Čelko, Ladislav and Novotný, Karel and Kaiser, Jozef}, article_location = {Cambridge}, article_number = {10}, doi = {http://dx.doi.org/10.1039/c5ja00257e}, keywords = {ELEMENTAL ANALYSIS; INDUCED PLASMA; MAGNESIUM BEHAVIOR; LIBS; SPECTROMETRY; ALLOYS; AZ91}, language = {eng}, issn = {0267-9477}, journal = {Journal of Analytical Atomic Spectrometry}, title = {Estimating the grade of Mg corrosion using laser-induced breakdown spectroscopy}, url = {http://pubs.rsc.org/en/Content/ArticleLanding/2015/JA/C5JA00257E#!divAbstract}, volume = {30}, year = {2015} }
TY - JOUR ID - 1335845 AU - Pořízka, Pavel - Ročňáková, Ivana - Klus, Jakub - Prochazka, David - Sládková, Lucia - Šperka, Pavel - Spotz, Zdeněk - Čelko, Ladislav - Novotný, Karel - Kaiser, Jozef PY - 2015 TI - Estimating the grade of Mg corrosion using laser-induced breakdown spectroscopy JF - Journal of Analytical Atomic Spectrometry VL - 30 IS - 10 SP - 2099-2106 EP - 2099-2106 PB - Royal Society of Chemistry SN - 02679477 KW - ELEMENTAL ANALYSIS KW - INDUCED PLASMA KW - MAGNESIUM BEHAVIOR KW - LIBS KW - SPECTROMETRY KW - ALLOYS KW - AZ91 UR - http://pubs.rsc.org/en/Content/ArticleLanding/2015/JA/C5JA00257E#!divAbstract L2 - http://pubs.rsc.org/en/Content/ArticleLanding/2015/JA/C5JA00257E#!divAbstract N2 - We present a report on the potential use of the Laser-Induced Breakdown Spectroscopy (LIBS) technique for direct investigation of Mg corrosion and related optimization of the table-top LIBS system. Moreover, the preliminary study to prove the capability of this LIBS technique for the estimation of corrosion grade is given. In order to simulate the real corrosive environment, Mg samples were prepared in a constant climate chamber. We show that the corrosive layer on the sample surface significantly affects the properties of laser-matter interactions, i.e. among other parameters causing the matrix effect. Consequently, the properties and persistence of laser-induced plasmas (LIPs) and their composition, generated on such degraded surfaces, essentially differ. Collected radiation of LIP is then analysed and ratios of ionic to atomic Mg spectral lines are correlated with the grade of magnesium corrosion, i.e. content of Mg(OH) 2 on the sample surface. The content of Mg(OH) 2 is also correlated with plasma temperature as well as with the electron number density of LIP. Additionally, X-ray diffraction (XRD) analysis and optical profilometry were utilized to obtain more comprehensive information about the degradation grade of high purity Mg samples. ER -
POŘÍZKA, Pavel, Ivana ROČŇÁKOVÁ, Jakub KLUS, David PROCHAZKA, Lucia SLÁDKOVÁ, Pavel ŠPERKA, Zdeněk SPOTZ, Ladislav ČELKO, Karel NOVOTNÝ a Jozef KAISER. Estimating the grade of Mg corrosion using laser-induced breakdown spectroscopy. \textit{Journal of Analytical Atomic Spectrometry}. Cambridge: Royal Society of Chemistry, 2015, roč.~30, č.~10, s.~2099-2106. ISSN~0267-9477. Dostupné z: https://dx.doi.org/10.1039/c5ja00257e.
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