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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 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.

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The authors acknowledge financial support from NSERC, Novonix, 3M Canada, the Canada Foundation for Innovation, and the Atlantic Innovation Fund for this work.

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Correspondence to M. N. Obrovac.

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Scott, B., Brown, C.A.M., Dunlap, R.A. et al. Quantitative composition determination by Mössbauer spectroscopy. MRS Communications 10, 123–128 (2020).

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