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Quantitative composition determination by Mössbauer spectroscopy

Published online by Cambridge University Press:  16 December 2019

B. Scott ,
C.A.M. Brown ,
R.A. Dunlap  and
M.N. Obrovac Open the ORCID record for M.N. Obrovac [Opens in a new window]
B. Scott
Affiliation:
Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, CanadaB3H 4R2
C.A.M. Brown
Affiliation:
Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, CanadaB3H 4R2
R.A. Dunlap
Affiliation:
Department of Physics and Atmospheric Science, Dalhousie University, Halifax, Nova Scotia, CanadaB3H 4R2
M.N. Obrovac*
Affiliation:
Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, CanadaB3H 4R2 Department of Physics and Atmospheric Science, Dalhousie University, Halifax, Nova Scotia, CanadaB3H 4R2 Clean Technologies Research Institute, Dalhousie University, Halifax, Nova Scotia, CanadaB3H 4R2
*
Address all correspondence to M.N. Obrovac at mnobrovac@dal.ca
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Abstract

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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Type
Research Letters
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MRS Communications , Volume 10 , Issue 1 , March 2020 , pp. 123 - 128
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Copyright © Materials Research Society 2019

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