Prof. Abraham Atta Ogwu

FIMMM, Vice Rector for internationalisation, East Kazakhstan Technical University, Ust Kamenogorsk, Republic of Kazakhstan.

Country United Kingdom

Short biography and link to the website or Research Gate.

Professor Ogwu received his PhD in Materials Science and Engineering from the School of Materials, University of Manchester, England, U.K. in 1994, received his MSc Metallic and Ceramic Materials from the University of Manchester, England, U.K in 1986 and completed his BSc (Hons) in Engineering Physics at the former University of Ife (now O.A.U), Nigeria in 1982.

He was a Professor in the school of Engineering and Computing at the University of the West of Scotland, Paisley campus, from 2002- 2018 before moving to Kazakhstan in February 2019 in his current position of Vice-Rector/Vice-President (Deputy Vice chancellor in the U.K) for internationalisation at the D. Serikbayev East Kazakhstan State Technical University, Republic of Kazakhstan. Professor Ogwu has been a Fellow of the U.K. Institute of Materials, Minerals and Mining, IOM3 (FIMMM, since 2007). He has also been a Fellow of the U.K. Institute of Physics (FinstP, since 2007).

Presentation title:

Corrosion resistant and pulsed /confined plasma carbon and boron based novel coatings for oil and gas pipeline and for coating applications in energy generation environment

Abstract:

Ultra-thick coatings based on Carbon and Boron have been prepared by pulsed plasma enhanced chemical vapour deposition (PECVD). The plasma used for the deposition was characterized by Optical emission spectroscopy and Langmuir probe.

The deposited films were characterized by Raman spectroscopy, AFM/SEM surface topography, and nano-indentation hardness measurements. Further characterization of the prepared films was conducted using XDLVO based surface energy measurements and corrosion testing in brine solution using OCP and Tafel plots, as well as Electrochemical impedance spectroscopy (EIS) using Nyquist plots, Bode plots and Mott-Schottky analysis. The prepared coatings were found to hold substantial promise in application areas that include Oil and gas pipeline protection and for corrosion protection in aggressive geothermal brine containing environments.

Selected /recent 2 or 3 Journal publications.

1 A.M. Oje, A.A. Ogwu, Alex. I. Oje, Nathaniel Tsendzughul, S. Ur-Rahman, A comparative study of the corrosion and ion release behaviour of chromium oxide coatings exposed to saline, Ringer’s and Hanks physiological solutions, Corrosion Science, 167 (2020) 108533.

2 A.M. Oje, A.A. Ogwu, S. Ur Rahman Alex. I. Oje, Nathaniel Tsendzughul, Effect of temperature variation on the corrosion behaviour and semi-conducting properties of the passive film formed on chromium oxide coatings exposed to saline solution, Corrosion Science, 154 (2019) 28-35.

3 Alex. I. Oje, A.A. Ogwu, Mojtaba Mirzaeian A.M. Oje, Nathaniel Tsendzughul, Silver thin film electrodes for super capacitor applications, Applied Surface Science, 488 (2019)142-150.