Dr Gregory Owen MPhys, Ph.D

Teaching and Learning, Research

Obtained an undergraduate Masters degree in Physics before completing a Ph.D in Spectroscopic, Electrical and Morphological analysis of Nano-Crystalline Gas Sensors.

Post doctoral research appointments in the areas of Grain Boundary Engineering of Sigma 3 and Special Grain Boundaries including a sabbatical to the University of Ferrara, Italy.

Gained qualified teaching status and teaching appointments in secondary, FE and HE settings.

Working towards achieving HEA status, CEng, CPhys

Teaching interests include:

• Materials & Manufacturing
• Material & Introduction to Manufacturing
• Manufacturing, Design & Technology
• Advanced Processes and Materials
• Structures and Properties of Materials
• Materials in Service
• Medical Engineering
• Bio-Mechanics

Research Interests:

• Grain Boundary Engineering
• Characterisation of Nano-Crystalline materials and their responses to oxidising and reducing gases
• Correlation of electronic properties with nanoscale morphological variations measured by SPM on semiconductor devices
• Pedagogical techniques used in Undergraduate Engineering
• Time evolution of Σ 3 annealing twins in secondary re-crystallisation
• Five-parameter analysis and grain boundary distribution of commercially grain boundary engineered materials
• Medical Engineering

[1]          Jones R, Owen G and Randle V, Carbide precipitation and grain boundary plane selection in overaged type 316 austenitic stainless steel. Submitted to Mater. Sci. Eng.

[2]          Randle V., Rohrer G.S., Miller H.M, Coleman M. and Owen G.T., Five-parameter grain boundary distribution of commercially grain boundary engineered nickel and copper, Acta Mater., in press.

[3]          Randle V. and Owen G.T. (2007) A comparison of grain boundary engineering mechanisms in copper and brass. Invited paper, Thermec, Vancouver, Trans. Tech. Publications, 539-543, 3365-3370.

[4]          Randle V., Coleman M. and Owen G.T., (2007) Evolution of the grain boundary network as a consequence of deformation and annealing. Fundamentals of deformation and annealing, invited paper,  Manchester, Mater. Sci. Forum, 550, 35-44.

[5]          Randle V., Rohrer G., Owen G.T. (2006)   The role of the boundary plane in grain boundary engineering, invited paper, 12^th Int. Symp. On Plasticity and its current applications, Nova Scotia, Ed. A.S. Khan and R. Kazmi, 307-309.

[6]          Owen GT and Randle V, (2006) On the role of iterative processing in grain boundary engineering, Scripta Mater., 55, 959-962.

[7]          Randle V. and Owen G.T. (2006) Mechanisms of grain boundary engineering, Acta Mater, 54, 1777-1783.

[8]          Booth M., Randle V. and Owen G., (2005) Time evolution of Σ 3 annealing twins in secondary recrystallised nickel, J. Micros., 217, 162-166.

[9] T.G.G. Maffeis, G.T. Owen, M.W. Penny, T.K.H. Starke, S.A. Clark, H. Ferkel, and S.P. Wilks, Nano-crystalline SnO2 gas sensor response to O-2 and CH4 at elevated temperature investigated by XPS. Surface Science 520 (2002) 29-34.

[10] P.R. Dunstan, T.G.G. Maffeis, M.P. Ackland, G.T. Owen, and S.P. Wilks, The correlation of electronic properties with nanoscale morphological variations measured by SPM on semiconductor devices. Journal of Physics-Condensed Matter 15 (2003) S3095-S3112.

[11] C. Malagu, M.C. Carotta, H. Fissan, V. Guidi, M.K. Kennedy, F.E. Kruis, G. Martinelli, T.G.G. Maffeis, G.T. Owen, and S.P. Wilks, Surface state density decrease in nanostructured polycrystalline SnO2: modelling and experimental evidence. Sensors and Actuators B-Chemical 100 (2004) 283-286

[12] T.G.G. Maffeis, G.T. Owen, M. Penny, H.S. Ferkel, and S.P. Wilks, STM patterning of SnO2 nanocrystalline surfaces. Applied Surface Science 234 (2004) 2-10.

[13] T.G.G. Maffeis, C.T. Owen, and S.P. Wilks, Room temperature and elevated temperature characterization of nanocrystalline SnO2 surfaces by scanning tunnelling microscopy and spectroscopy. International Journal of Nanoscience, Vol 3, Nos 4 and 5 3 (2004) 519-524.

[14] T.G.G. Maffeis, A. Penny, K.S. Teng, S.P. Wilks, H.S. Ferkel, and G.T. Owen, Macroscopic and microscopic investigations of the effect of gas exposure on nanocrystalline SnO2 at elevated temperature. Applied Surface Science 234 (2004) 82-85.

[15] C. Malagu, M.C. Carotta, S. Galliera, V. Guidi, T.G.G. Maffeis, G. Martinelli, G.T. Owen, and S.P. Wilks, Evidence of bandbending flattening in 10 nm polycrystalline SnO2. Sensors and Actuators B-Chemical 103 (2004) 50-54.

[16] T.G.G. Maffeis, G.T. Owen, C. Malagu, G. Martinelli, M.K. Kennedy, F.E. Kruis, and S.P. Wilks, Direct evidence of the dependence of surface state density on the size of SnO2 nanoparticles observed by scanning tunnelling spectroscopy. Surface Science 550 (2004) 21-25.

[17] S.P. Wilks, T.G.G. Maffeis, G.T. Owen, K.S. Teng, M.W. Penny, and H. Ferkel, Charge writing on the nanoscale: From nanopatterning to molecular docking. Journal of Vacuum Science & Technology B 22 (2004) 1995-1999.