Electrochemical investigation of the stability and corrosion resistance of Boron Phosphide films prepared by PECVD

Abraham Ogwu, Thomas Hellwig, Saul Doherty, David Haddow, Klaus Peter Möllmann, Francis Placido

Research output: Contribution to journalConference articlepeer-review

7 Citations (Scopus)


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.

Original languageEnglish
Article number41
Pages (from-to)365-372
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2005
Externally publishedYes
EventWindow and Dome Technologies and Materials IX - Orlando, FL, United States
Duration: Mar 28 2005Mar 29 2005

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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