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Higher degree by research students

Mohammed Mahmoud

Telephone: +61883023588

Email: mohammed.mahmoud@mymail.unisa.edu.au


About me


Currently, I am a PhD student at Future Industries Institutes, University of South Australia, Australia, starting from 19/3/2018. My supervisors are: Dr. Rick Fabretto, Prof. Peter Murphy, A.Prof. Colin Hall and Ms. Candice Francis.

I am fully funded by the "Research Training Program (RTP)'' for International Students

I also have received the Vice Chancellor and President's Scholarship

I graduated from Physics Department, Faculty of Science, Minia University, Egypt in 2011 with an Excellent degree (88.76%) and then worked at the same department as a demonstrator and as an assistant lecturer within the period from February 2013 to March 2018.

Within this period, I was responsible for teaching some practical physics courses to undergraduate students and performing some scientific researches for the master degree and as a part of my tasks in my lab.

In May 2015, I had Master of Science (Nuclear Physics from September 2011 to May 2015 under the title: (Nuclear Technique (Positron Annihilation Spectroscopy) to Study the Properties of Some Wrought AL-Alloys) from Physics Department, Faculty of Science, Minia University. 


Thesis


My research proposal title is: "Layered ternary silicon-based composite film anodes using physical vapor deposition for Li-ion batteries".

The main aim of this research is to fabricate and characterize novel silicon-based film anodes with high electrochemical performance and stable charge/discharge cycling. The ideal outcome will be to obtain a capacity retention of more than 80% within at least 2000 cycles, with an average capacity fade of not more than 0.01%. Such a result would make the films industrially relevant and ideal for commercialization. However, even below this ideal outcome a modest increase in cycle-life/capacity retention will result in battery performance that will exceed that of carbon-based anode lithium-ion batteries (LIBs). Within this project, we will present an understanding of the layered silicon-based composite film structure and composition and their impact on battery performance. A deep understanding of the behavior of each separate layer as a function of the deposition conditions and the behavior of two- and multi-layers will be pursued. This understanding will include, but not limited to, the adhesion and interaction between the different layers and the electrolyte within single, double and multilayer structures. In addition, the stress generated during the deposition and its change with the film’s composition and structure will be examined. Magnetron sputtering will be utilized for its recognized ability to produce large-scale, uniform, dense films with good adhesion between the film and substrate. Specifically, the ability to produce large-scale films made it a good tool suitable for in industrialization, and it has already been successful applied in hard-, electronic-, and optical-coatings. The options put forward in this research proposal present the possibility of scale-up and commercialization if promising results are obtained. Finally, the use of silicon as the main element provides the capacity, if successful, to provide for a quantum improvement in LIB storage capacity.


Research publications


·Abdel-Rahman, M., Salah, M., Ibrahim, A. M., & Badawi, E. A. (2017). Comparative techniques to investigate plastically deformed 5754 Al-alloy. Modern Physics Letters B, 1750255.‏ http://www.worldscientific.com/doi/abs/10.1142/S0217984917502554

·Badawi, E. A., Abdel-Rahman, M. A., Salah, M., & Abdel-Rahman, M. (2016). Study the Effect of Plastic Deformation in 8006 Al-Alloys by Positron Lifetime Spectroscopy, Vickers Hardness and X-Ray Diffraction. Defect and Diffusion Forum (Vol. 373, pp. 142-145). Trans Tech Publications.‏ https://www.scientific.net/DDF.373.142

·Salah, M., Abdel-Rahman, M., Badawi, E. A., & Abdel-Rahman, M. A. (2016). Determination of the activation enthalpy for migration of dislocations in plastically deformed 8006 Al-alloy by positron annihilation lifetime technique. International Journal of Modern Physics B, 30(18), 1650110.‏ http://www.worldscientific.com/doi/abs/10.1142/S0217979216501101

·Rahman, M. A., Badawi, E. A., & Salah, M. (2015). Study of the Discontinuity Parameters due to Cold Work for 3005 Aluminum Alloy using Positron Lifetime Spectroscopy. Materials Evaluation, 73(12), 1585-1589.‏

https://ndtlibrary.asnt.org/2015/StudyoftheDiscontinuityParametersduetoColdWorkfor3005AluminumAlloyusingPositronLifetimeSpectrosco


Associations


I worked for more than 5 years for Physics Department, Faculty of Science, Minia University, Egypt.

Our industry partner is PMB Defence.

We have collaboration with Dr. Robert Kerr from Deakin University.