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Analysis of Refractory Metals and WC-Based Hard Metals by Energy Dispersive X-Ray Fluorescence

Published online by Cambridge University Press:  06 March 2019

Wolfhard Wegscheider ,
Kurt Müller  and
Hugo M. Ortner
Wolfhard Wegscheider
Affiliation:
Institute for Analytical Chemistry, Micro- and Radiochemistry, Technical University Graz, A-8010 Graz, Austria
Kurt Müller
Affiliation:
Institute for Analytical Chemistry, Micro- and Radiochemistry, Technical University Graz, A-8010 Graz, Austria
Hugo M. Ortner
Affiliation:
Metallwerk Plansee AG, A-6600 Reutte, Austria
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Abstract

The potential of energy-dispersive X-ray fluorescence spectrometry for analysis of refractory metals and WC-based hard metals is investigated. Both, photon excitation by filtered tube radiation and by the characteristic, lines of a secondary target are employed. Both excitation systems give good results. If the counting times are adjusted to account for the lower sensitivity of energy dispersive as opposed to wavelength dispersive X-ray spectrometry the detection limit and precision data are comparable. The multielement analyses of interest in these applications that comprise an energy range of 5 keV or more are better handled by direct excitation with filtered tube radiations than either by secondary target excitation or by wavelength dispersive X-ray spectrometry.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 24: Twenty-Ninth Annual Conference on Applications of X-ray Analysis, August 4-8, 1980 , 1980 , pp. 383 - 392
Copyright
Copyright © International Centre for Diffraction Data 1980

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