J 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

EID Scopus

Klíčová slova anglicky

ELEMENTAL ANALYSIS; INDUCED PLASMA; MAGNESIUM BEHAVIOR; LIBS; SPECTROMETRY; ALLOYS; AZ91

Štítky

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

ED1.1.00/02.0068, projekt VaV
Název: CEITEC - central european institute of technology