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Interests
- Plasma based materials processing for thin film devices,
coatings and nanoceramics
- Thin films and coatings for medical implants
- Thin films for opto-electronics and communications
- Thin films for micro-electronics ( low-k dielectric films)
- Thin films for food and beverage packaging
- MEMs and Nanotechnologies ( High Temperature MEMs Materials)
- Superhard coatings and films
- Smart Materials
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Brief work history
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| My work experience includes University
Lectureships in overseas Universities dating back to 1987. I was also a
post-doctoral research associate at the University of Manchester
Institute of Science and Technology (UMIST), England for about three and
a half years. I was until recently an Academic staff in the school of
electrical and mechanical engineering and Warden of the University
residences at the university of Ulster ( Jordanstown campus) in Northern
Ireland, before I joined Paisley university as Professor at the Thin
film centre in summer 2002.My background is in materials science and
engineering and my research activities have centred around the
development of plasma based advanced functional thin films and coatings
for high technology applications. |
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Recent/relevant publications:
- A.A .Ogwu , P. Colleran, P.Maguire, P.Lemoine and J.McLaughlin,
Fitting a probability distribution function to the saturation crack
spacing distribution in the substrate plastic straining test for
thin films and coatings. Surface Engineering (2002). Accepted for
publication.
- A.A.Ogwu, T.I.T Okpalugo, P.D. Maguire and J.A.D. McLaughlin,
Endothelial cell compatibility of silicon modified hydrogenated
amorphous carbon thin films, submitted to Physics in medicine and
Biology (2002)
- T.Okpalugo, A.Ogwu, P.Maguire and J.McLaughlin , The role of
electrical properties and surface energy on the biocompatibility and
haemocompatibility of Si-DLC films. Technology and Healthcare;
International Journal of Health Care Engineering, Vol.9, nos 1-2,
(2001) P81-83.
- D.P. Magill, A.A.Ogwu , J.McLaughlin, P.D. Maguire et al,
Electrical characteristics of nitrogen doped hydrogenated amorphous
carbon, Journal of Vacuum Science and Technology A 19(5), sept/oct2001,
p2456-2462.
- P.D. Maguire, D.P. Magill, A.A. Ogwu and J. McLaughlin, The
insulating properties of a-C:H on silicon and metal substrates,
Diamond and Related Materials 10 (2001), pp216-223.
- P.Lemoine, J.F. Zhao, J.P. Quinn, A.A. Ogwu et al,
Nanoindentation and scratch resistance testing on magnetic tape
heads coated with ultra-thin amorphous carbon layers. Wear 244
(2000) pp79-84.
- A.A Ogwu, D. Magill, P. Maguire, J. McLaughlin, R.W. McCullough
and D. Voulot, Nitrogen doping of a-C:H by R×F. plasma dissociated
nitrogen atom surface bombardment in a vacuum., Surface Engineering
(2000), vol.16, No.5, pp427-430.
- J. McLaughlin, P. Maguire, A.Ogwu, R.Lamberton, J.F. Zhao and
P.Lemoine, Ultra-thin film deposition and characterisation of 10nm
amorphous carbon layers for application in magnetic storage devices.
International Journal of Modern Physics B, Vol 14, Nos . 2 & 3,
January 30, 2000. pp167-180.
- A.A Ogwu, R.W Lamberton, P.D Maguire, J.A McLaughlin, The effect
of substrate bias on the Raman Spectra and thermal stability of
Diamond like Carbon (DLC) and silicon modified DLC films prepared by
plasma enhanced chemical vapour deposition (PECVD). J. Phys. D:
Applied Physics, 32, (1999) pp981-987.
- P.A Dearnley, J. Gummersbach, H.Weiss, A.A Ogwu, T.J Davies, The
sliding wear resistance and frictional characteristics of surface
modified aluminium alloys under extreme pressure. Wear, 225-229,
(1999) pp127-134.
- A.A Ogwu, R.W Lamberton, S. Morley, P.D Maguire, J.A McLaughlin,
Characterisation of thermally annealed DLC and Si-DLC by Raman
Spectroscopy. Physica B, 269 (1999) pp335 –344.
- A.A Ogwu and T.J Davies, t phase formation in a Tic+TiB2
composite with a nickel based binder alloy. Scripta Materialia
,vol.40, no.12(1999) pp1377-1380.
- J. McLaughlin, A.Ogwu, P.Maguire The Tribological implications
of developing self-lubricating silicon modified DLC protective films
for the magnetic information storage media. Datatech, 3rd Edition,
1999, 167-171.
- P. Lemoine, R.W. Lamberton, A.A. Ogwu, J. McLaughlin,
Complementary techniques for the morphological study of ultra-thin
amorphous carbon films. J. Appl.physics , vol 86 ,1999, No.11, P1-7.
- A.A.Ogwu and T.J.Davies, Improving the sensitisation resistance
of ferritic stainless steels, Scripta Materialia, Vol. 37, No. 3,
(1997) pp259 – 263.
- Z.C. Wang, T.J. Davies, N. Ridley and A.A. Ogwu, Superplasticity
of Ceramic Materials – II, Effect of initial porosity and doping on
the Superplastic behaviour of Alumina, Acta Metallurgica et
Materialia, Vol. 44, No.11, (1996) pp4301 – 4309
- A.A. Ogwu and T.J. Davies, A band structure based predictive
criteria for selecting densifying additives during sintering of
transition metal based hardmetals and Iono-covalent ceramics,
Physica B, 222 (1996) pp131 – 135
- T.J.Davies, A.A.Ogwu, N.Ridley and Z.C.Wang, Superplasticity in
Ceramic Materials – Part I: The observation of a Superplastic
partition in Ceramics, Acta Metallurgica et Materialia, Vol. 44, No.
6 (1996) pp2373 – 2382
- A.A.Ogwu and T.J.Davies, The densification and mechanical
properties of a TiC and TiB2 hardmetal sintered with a reactive
binder alloy, Physica status solidi (a) 1996 pp101 – 116
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