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Improving the analytical performance of pulsed-GD-SFMS for multi-elemental depth profile analysis of heat-treated Zn coatings on extruded aluminium

  • The formation of diffusion layers on Zn layers deposited on Al substrates is mainly used to prevent corrosion effects. Evaluation of the influence exerted by different coating methodologies and heat treatments on the formation of these diffusion layers is of great interest for the aluminium industry. Particularly, multi-elemental in-depth distributions of major, minor and trace elements in Zn-coatings is highly demanded before and after heat treatments. A fast characterization of these materials require a direct solid analytical technique able to provide high sensitivity and high depth resolution. For this purpose, an improved analytical method based on the use of pulsed glow discharge sector field mass spectrometry (pulsed-GD-SFMS) is investigated. Glow discharge operating parameters (e.g. pulse duration, pulse frequency), glow discharge source design (e.g. flow tube lengths), and SFMS mass spectra acquisition conditions (e.g. integration time) are evaluated to achieve low sputteringThe formation of diffusion layers on Zn layers deposited on Al substrates is mainly used to prevent corrosion effects. Evaluation of the influence exerted by different coating methodologies and heat treatments on the formation of these diffusion layers is of great interest for the aluminium industry. Particularly, multi-elemental in-depth distributions of major, minor and trace elements in Zn-coatings is highly demanded before and after heat treatments. A fast characterization of these materials require a direct solid analytical technique able to provide high sensitivity and high depth resolution. For this purpose, an improved analytical method based on the use of pulsed glow discharge sector field mass spectrometry (pulsed-GD-SFMS) is investigated. Glow discharge operating parameters (e.g. pulse duration, pulse frequency), glow discharge source design (e.g. flow tube lengths), and SFMS mass spectra acquisition conditions (e.g. integration time) are evaluated to achieve low sputtering rates, high mass spectra acquisition rates and improved depth resolution. At the optimize conditions Zn coatings deposited by arc-spray and electrodeposition are analysed before and after heat treatments to evaluate the diffusion of different key elements. Moreover, results are validated using femtosecond laser ablation (fs-LA)-ICP-MS, which provides additional information about the heterogeneous distribution of some elements in the Zn coatings.zeige mehrzeige weniger

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Metadaten
Autor*innen:J. Pisonero, J. Fandino, J. H Nordlien, Silke RichterORCiD, Jens Pfeifer, C. D. Quarles, J. Gonzalez, Norbert JakubowskiORCiD, N. Bordel
Dokumenttyp:Zeitschriftenartikel
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Journal of Analytical Atomic Spectrometry
Jahr der Erstveröffentlichung:2019
Organisationseinheit der BAM:1 Analytische Chemie; Referenzmaterialien
1 Analytische Chemie; Referenzmaterialien / 1.6 Anorganische Referenzmaterialien
Verlag:Royal Society of Chemistry
Verlagsort:London
Jahrgang/Band:34
Ausgabe/Heft:11
Erste Seite:2252
Letzte Seite:2260
DDC-Klassifikation:Naturwissenschaften und Mathematik / Chemie / Analytische Chemie
Freie Schlagwörter:Aluminium; Depht profiling; GDMS; Pulsed-GD-SFMS; Zn
Themenfelder/Aktivitätsfelder der BAM:Chemie und Prozesstechnik
Chemie und Prozesstechnik / Chemische Charakterisierung und Spurenanalytik
DOI:10.1039/c9ja00189a
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:31.10.2019
Referierte Publikation:Ja
Datum der Eintragung als referierte Publikation:25.11.2019
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