2015
Estimating the grade of Mg corrosion using laser-induced breakdown spectroscopy
POŘÍZKA, Pavel; Ivana ROČŇÁKOVÁ; Jakub KLUS; David PROCHAZKA; Lucia SLÁDKOVÁ et al.Základní údaje
Originální název
Estimating the grade of Mg corrosion using laser-induced breakdown spectroscopy
Autoři
POŘÍZKA, Pavel; Ivana ROČŇÁKOVÁ; Jakub KLUS; David PROCHAZKA; Lucia SLÁDKOVÁ; Pavel ŠPERKA; Zdeněk SPOTZ; Ladislav ČELKO; Karel NOVOTNÝ a Jozef KAISER
Vydání
Journal of Analytical Atomic Spectrometry, Cambridge, Royal Society of Chemistry, 2015, 0267-9477
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10305 Fluids and plasma physics
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.379
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14740/15:00086613
Organizační jednotka
Středoevropský technologický institut
UT WoS
EID Scopus
Klíčová slova anglicky
ELEMENTAL ANALYSIS; INDUCED PLASMA; MAGNESIUM BEHAVIOR; LIBS; SPECTROMETRY; ALLOYS; AZ91
Změněno: 19. 5. 2017 12:59, Mgr. Eva Špillingová
Anotace
V originále
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.
Návaznosti
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