Quantitative composition determination by Mössbauer spectroscopy

Quantitative Fe content determination of powders by Mössbauer spectroscopy is described. In this method, powder samples and internal standard are combined homogeneously in a plastic film ensuring a thin absorber. This method was verified by quantifying the Fe content of a series of samples and indep...

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Veröffentlicht in:MRS communications 2020-03, Vol.10 (1), p.123-128, Article 2159685919001587
Hauptverfasser: Scott, B., Brown, C. A. M., Dunlap, R. A., Obrovac, M. N.
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Sprache:eng
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Zusammenfassung:Quantitative Fe content determination of powders by Mössbauer spectroscopy is described. In this method, powder samples and internal standard are combined homogeneously in a plastic film ensuring a thin absorber. This method was verified by quantifying the Fe content of a series of samples and independently confirming by inductively coupled plasma optical emission spectroscopic analysis. Additionally, for the first time, Fe contamination in ball-milled Si as a function of milling time was quantified. It was found that Fe contamination increased with time but surprisingly became steady state at 1.12 ± 0.04 at.% Fe after grain size reduction.
ISSN:2159-6859
2159-6867
DOI:10.1557/mrc.2019.158