Detail publikace

Estimating the grade of Mg corrosion using Laser-Induced Breakdown Spectroscopy

Originální název

Estimating the grade of Mg corrosion using Laser-Induced Breakdown Spectroscopy

Anglický název

Estimating the grade of Mg corrosion using Laser-Induced Breakdown Spectroscopy

Jazyk

en

Originální abstrakt

We present a report on the potential use of Laser-Induced Breakdown Spectroscopy (LIBS) technique for direct investigation of Mg corrosion and related optimization of table-top LIBS system. Moreover, the preliminary study to prove the capability of LIBS technique for the estimation of corrosion grade is given. In order to simulate the real corrosive environment, Mg samples were prepared in the constant climate chamber. We show that the corrosive layer on the sample surface significantly affects properties of laser-matter interaction, i.e. among other parameters causes 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.

Anglický abstrakt

We present a report on the potential use of Laser-Induced Breakdown Spectroscopy (LIBS) technique for direct investigation of Mg corrosion and related optimization of table-top LIBS system. Moreover, the preliminary study to prove the capability of LIBS technique for the estimation of corrosion grade is given. In order to simulate the real corrosive environment, Mg samples were prepared in the constant climate chamber. We show that the corrosive layer on the sample surface significantly affects properties of laser-matter interaction, i.e. among other parameters causes 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.

BibTex


@article{BUT115472,
  author="Pavel {Pořízka} and Ivana {Ročňáková} and Jakub {Klus} and David {Prochazka} and Lucia {Sládková} and Petr {Šperka} and Zdeněk {Spotz} and Ladislav {Čelko} and Karel {Novotný} and Jozef {Kaiser}",
  title="Estimating the grade of Mg corrosion using Laser-Induced Breakdown Spectroscopy",
  annote="We present a report on the potential use of Laser-Induced Breakdown Spectroscopy (LIBS) technique for direct investigation of Mg corrosion and related optimization of table-top LIBS system. Moreover, the preliminary study to prove the capability of LIBS technique for the estimation of corrosion grade is given. In order to simulate the real corrosive environment, Mg samples were prepared in the constant climate chamber. We show that the corrosive layer on the sample surface significantly affects properties of laser-matter interaction, i.e. among other parameters causes 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.",
  address="Royal Society of Chemistry",
  chapter="115472",
  doi="10.1039/c5ja00257e",
  howpublished="print",
  institution="Royal Society of Chemistry",
  number="7",
  volume="2015",
  year="2015",
  month="august",
  pages="2099--2106",
  publisher="Royal Society of Chemistry",
  type="journal article in Web of Science"
}