The determination of binary mixtures in metallic coatings

Some common metallic coatings on steel are in fact binary mixtures (Gignoux and Gouel, 1991). These are Zn/Al, Zn/Ni and Zn/Fe. The measurement of the first two coatings using x-ray fluorescence easily yields value for both the coating weight and the composition. However, Zn/Fe (galvanneal) poses sp...

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Bibliographic Details
Published inApplied radiation and isotopes Vol. 44; no. 10; pp. 1269 - 1277
Main Author Outhwaite, Stephen J.
Format Journal Article Conference Proceeding
LanguageEnglish
Published Oxford Elsevier Ltd 01.10.1993
Elsevier
Subjects
Applied sciences
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Metals. Metallurgy
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Other interactions of matter with particles and radiation
Physics
X-ray emission spectra and fluorescence
X-ray emission threshold and fluorescence
Emission spectra
Transition elements
Fluorescence
X radiation
Aluminium
Iron
Nickel
X-ray spectra
Binary mixtures
Coatings
Zinc
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Summary:Some common metallic coatings on steel are in fact binary mixtures (Gignoux and Gouel, 1991). These are Zn/Al, Zn/Ni and Zn/Fe. The measurement of the first two coatings using x-ray fluorescence easily yields value for both the coating weight and the composition. However, Zn/Fe (galvanneal) poses special problems because Fe K α fluorescence arises from the Fe contained in the coating and from the steel substrate. A solution involving a special x-ray beam geometry and correct selection of beam energy is presented.
ISSN:0969-8043
1872-9800
DOI:10.1016/0969-8043(93)90077-N