The comparison of transition metal concentration ratios determined by EELS and EDX

Peter Crozier, J. N. Chapman, A. J. Craven, J. M. Titchmarsh

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The correlation that exists between elemental concentration ratios determined using EDX and EELS is examined. EELS and EDX were recorded simultaneously from the second phase carbides of a ferritic steel and the Cr/Fe and Mn/Fe concentration ratios were determined from each spectrum. For this system, it was found that the Cr/Fe ratios could be determined by EDX to within an accuracy of 4% and these were then used to provide a check on the EELS analysis procedures. The effects of using different partial ionization cross‐section models and methods of applying these models were examined. It was found that an overall agreement of 3% between EDX and EELS was obtained in this particular experiment. Much poorer agreement was found to exist between the two techniques for the Mn/Fe ratios. The discrepancy is attributed mainly to the inadequacies of the procedure used for extracting the Mn characteristic signal in the EELS spectra. 1987 Blackwell Science Ltd

Original languageEnglish (US)
Pages (from-to)1-16
Number of pages16
JournalJournal of Microscopy
Volume146
Issue number1
DOIs
StatePublished - 1987
Externally publishedYes

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Metals
Steel

Keywords

  • background fitting
  • characteristic signals
  • concentration ratios
  • Electron energy loss spectroscopy (EELS)
  • elemental analysis
  • energy dispersive X‐ray spectroscopy (EDX)
  • ionization cross sections

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Histology

Cite this

The comparison of transition metal concentration ratios determined by EELS and EDX. / Crozier, Peter; Chapman, J. N.; Craven, A. J.; Titchmarsh, J. M.

In: Journal of Microscopy, Vol. 146, No. 1, 1987, p. 1-16.

Research output: Contribution to journalArticle

Crozier, Peter ; Chapman, J. N. ; Craven, A. J. ; Titchmarsh, J. M. / The comparison of transition metal concentration ratios determined by EELS and EDX. In: Journal of Microscopy. 1987 ; Vol. 146, No. 1. pp. 1-16.
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N2 - The correlation that exists between elemental concentration ratios determined using EDX and EELS is examined. EELS and EDX were recorded simultaneously from the second phase carbides of a ferritic steel and the Cr/Fe and Mn/Fe concentration ratios were determined from each spectrum. For this system, it was found that the Cr/Fe ratios could be determined by EDX to within an accuracy of 4% and these were then used to provide a check on the EELS analysis procedures. The effects of using different partial ionization cross‐section models and methods of applying these models were examined. It was found that an overall agreement of 3% between EDX and EELS was obtained in this particular experiment. Much poorer agreement was found to exist between the two techniques for the Mn/Fe ratios. The discrepancy is attributed mainly to the inadequacies of the procedure used for extracting the Mn characteristic signal in the EELS spectra. 1987 Blackwell Science Ltd

AB - The correlation that exists between elemental concentration ratios determined using EDX and EELS is examined. EELS and EDX were recorded simultaneously from the second phase carbides of a ferritic steel and the Cr/Fe and Mn/Fe concentration ratios were determined from each spectrum. For this system, it was found that the Cr/Fe ratios could be determined by EDX to within an accuracy of 4% and these were then used to provide a check on the EELS analysis procedures. The effects of using different partial ionization cross‐section models and methods of applying these models were examined. It was found that an overall agreement of 3% between EDX and EELS was obtained in this particular experiment. Much poorer agreement was found to exist between the two techniques for the Mn/Fe ratios. The discrepancy is attributed mainly to the inadequacies of the procedure used for extracting the Mn characteristic signal in the EELS spectra. 1987 Blackwell Science Ltd

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