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The measurement of porosity in tin coatings on steel

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thesis
posted on 27.02.2018, 14:50 by Ian M. Notter
Existing methods for porosity testing are not suitable for accurate quantitative measurements on the very thin coatings produced by modern tinplate lines. Electrochemical tests for use on these coatings, in both the as plated and reflowed condition, have therefore been evaluated. The corrosion potential and polarisation resistance of tinplate in a 0.5M ammonium thiocyanate solution were both found to give an index of the porosity. In the simple case of non-reflowed plate simulated porous tin plates, made from iron wires cast into tin, were used to construct calibration curves for these two methods. [Continues.]

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Materials

Publisher

© I.M. Notter

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 2.5 Generic (CC BY-NC-ND 2.5) licence. Full details of this licence are available at: http://creativecommons.org/licenses/by-nc-nd/2.5/

Publication date

1990

Notes

A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy at Loughborough University.

Language

en

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