Particle induced gamma and X-ray emission spectroscopies of lithium based alloy coatings

Journal article (2017)

Authors

J. S. Laird CSIRO Mineral Resources, University of Melbourne

A. E. Hughes Deakin University, CSIRO Mineral Resources

C.J. Ryan University of Melbourne, CSIRO Mineral Resources

P Visser Akzo Nobel, Materials Science and Engineering

H.A. Terryn (OLD) MSE-1 , Vrije Universiteit Brussel

J.M.C. Mol (OLD) MSE-6

Research Group

(OLD) MSE-1

DOI: https://doi.org/10.1016/j.nimb.2017.03.088

Corrosion Corrosion inhibitor Li coatings Lithium coatings Nuclear Microprobe (NMP) Particle Induced X-ray Emission (PIXE) Μ-Particle Induced Gamma-ray Emission (PIGE)

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Published Date

2017

Language

English

Research Group

(OLD) MSE-1

Abstract

Lithium based inhibitors in aerospace coatings are seen as excellent replacements for their chromium counterparts which are both carcinogenic and heavier. However, Li is generally difficult to detect and following changes in its distribution due to corrosion is impossible with many standard techniques. Combining MeV Particle Induced Gamma and X-ray emission provides a powerful tool and in this paper we summarise some recent experiments on such coatings using the CSIRO Nuclear Microprobe. PIGE mapping of the LiCO₃ particles and their patterning illustrates how the method will be extremely useful in monitoring surface corrosion.

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