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Proceedings Paper

Electrochemical investigation of the stability and corrosion resistance of boron phosphide films prepared by PECVD
Author(s): Abraham Ogwu; Thomas Hellwig; Saul Doherty; David Haddow; Klaus-Peter Moellman; Francis Placido
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Paper Abstract

The corrosion susceptibility of Boron phosphide films prepared by PECVD, was studied in saturated saline solution as a function of phosphine flow rate during deposition. The chemical composition of the Boron phosphide films was determined by x-ray photoelectron spectroscopy (XPS) analysis. The investigation involved open circuit potential measurements (OCP) over several hours, potentiodynamic polarisation and electrochemical impedance Spectroscopy (EIS) measurements. The corrosion rate of the Boron Phosphide films was found to vary with changes in the phosphine flow rate during deposition. The results of our investigation also showed that Boron phosphide coated stainless steel plates had superior corrosion resistance, when compared to bare uncoated stainless steel plates. This opens up the potential for the application of Boron Phosphide films as a protective coating to improve the corrosion resistance of metals and alloys for various engineering applications.

Paper Details

Date Published: 18 May 2005
PDF: 8 pages
Proc. SPIE 5786, Window and Dome Technologies and Materials IX, (18 May 2005); doi: 10.1117/12.603337
Show Author Affiliations
Abraham Ogwu, Paisley Univ. (United Kingdom)
Thomas Hellwig, Paisley Univ. (United Kingdom)
Saul Doherty, Thales Optronics (United Kingdom)
David Haddow, Thales Optronics (United Kingdom)
Klaus-Peter Moellman, Brandenburg Univ. of Applied Sciences (Germany)
Francis Placido, Paisley Univ. (United Kingdom)


Published in SPIE Proceedings Vol. 5786:
Window and Dome Technologies and Materials IX
Randal W. Tustison, Editor(s)

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