ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Chemical Analysis of Powdered Metallurgical Slags by X-ray Fluorescence Spectrometry
Liming LuMark WardAlex Mclean
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2003 Volume 43 Issue 12 Pages 1940-1946


Slag composition determines the physical and chemical properties as well as the application performance of molten oxide mixtures. Therefore, it is necessary to establish a routine instrumental technique to produce accurate and precise analytical results for better process and production control. In the present paper, a multi-component analysis technique of powdered metallurgical slag samples by X-ray Fluorescence Spectrometer (XRFS) has been demonstrated. This technique provides rapid and accurate results, with minimum sample preparation. It eliminates the requirement for a fused disc, using briquetted samples protected by a layer of Borax®. While the use of theoretical alpha coefficients has allowed accurate calibrations to be made using fewer standard samples, the application of “pseudo-Voight” function to curve fitting makes it possible to resolve overlapped peaks in X-ray spectra that cannot be physically separated. The analytical results of both certified reference materials and industrial slag samples measured using the present technique are comparable to those of the same samples obtained by conventional fused disc measurements.

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© The Iron and Steel Institute of Japan
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